文本
It is a mystery why we fall in love. It is a mystery how it happens. It is a mystery why some love grows and it is a mystery why some love fails.You can analyze this mystery and look for reasons and causes, but you will never do anymore than take the life out of the experience. Just as life itself is more than the sum of muscles and bones and electrical impulses in the body, love is more than the sum of the interests and attractions and commonalities that two people share. And just as life itself is a gift that comes and goes in its own time, so too, the coming of love must be taken as an unfathomable gift that cannot be questioned in its ways.

Sometimes, hopefully at least once in your life-the gift of love will come to you in full flower. Take hold of it and celebrate it in all inexpressible beauty. This is the dream we all share. Unfortunately, more often, it will come and take hold of you, celebrate you for a brief moment then move on.When this happens to young people, they too often try to grasp the love and hold it to them, refusing to see that it is a gift that just as freely, moves away. They want answers where there are no answers. They want to know what is wrong in them that makes the other person no longer love them, or try to get their love to change. They try anything to give meaning to what has happened. But there is no meaning beyond the love itself, and until they accept its own mysterious ways, they live in a sea of misery.

You need to know this about love, and accept it. You need to treat what it brings you with kindness. If you find yourself in love with someone who does not love you, be gentle with yourself. There is nothing wrong with you. Love just didn't choose to rest in the other person's heart.If you find yourself, someone in love with you but you don't love him back, feel honored that love came and called at your door, but gently refuse the gift you cannot return. Do not take advantage; do not cause pain. How you deal with love is how you deal with yourself. All our hearts feel the same pains and joys, even if our lives and ways are different.

Love has its time, its own season, its own reason for coming and going. You cannot bribe it or coerce it, or reason it into staying. If it chooses to leave from your heart or from the heart of your lover, there is nothing you can do and there is nothing you should do. Love always has been and always will be a mystery. Be glad that it came to live for a moment in your life.

If you keep your heart open, it will come again....

精讲
It is a mystery why we fall in love. It is a mystery how it happens. It is a mystery why some love grows and it is a mystery why some love fails.
我们缘何坠入爱河,这是一个难解的迷.它是怎么发生的,它何时会来到,为何爱会成长,而有些爱又为何会失败,一切都是迷.
本句话用了排比句式,作者用了四个相同句式的并列结构”It is a mystery +特殊疑问词+从句主语+从句谓语”,阐释了爱的神秘.这样强调式的表达方法在写作时值得借鉴.

Just as life itself is more than the sum of muscles and bones and electrical impulses in the body, love is more than the sum of the interests and attractions and commonalities that two people share.
正如生活的本身远不止人体内骨骼,肌肉以及电脉冲的总和,哎也不仅仅在于2个人能一起分享兴趣,乐趣和共识.
Commonality: a shared feature or attribute 共同点

Love has its time, its own season, its own reason for coming and going. You cannot bribe it or coerce it, or reason it into staying.
哎自有时,莫要强求;贿赂不成,胁迫不得,爱亦难留!
这两个句子结构工整,读起来琅琅上口,意思也耐人寻味,令人深思.
Coerce:强迫,迫使
Her parents ~d her into marrying the man.
她的父母强迫她嫁给那个人.
Our obedience was ~d.
我们的服从是被迫的.

核心词汇
Impulse:冲动,脉冲
nerve impulses
神经冲动

Unfathomable:高深莫测的,难解的
the ocean's unfathomable depths
海洋中无法到达的深处

Inexpressible:无以言表的
nexpressible sorrow, anguish, joy, etc 难以形容的悲哀﹑ 痛苦﹑ 喜悦等

bribe: 向...行贿;收买[(+with/into)][O2]
They tried to bribe the reporter into silence.
他们试图收买该记者,不让他张扬。
One of the witnesses was bribed to give false evidence.
有个证人受贿而提供伪证.