原文视听

Success, and it's quick to get back to its shell.
成功 它迅速钻回它的贝壳里
A fringehead can never drop its guard, there's too much competition.
勃氏新热鳚必须时时提高警觉 四周的竞争太多
Some fish have moved to places where they have fewer rivals.
有些鱼类迁移到对手较少的地方
A mudskipper a fish that spends most of its life out of the sea.
一条弹涂鱼 这种鱼大多不在海里生活
It can walk on land and breathe air.
它可以在陆上行走，呼吸空气
Its life is very different from that of most fish.
它的生活和大多鱼类截然不同
A fish out of water maybe,
或许算是离乡背井
but they thrive here in Japan.
但它们在日本这里大量繁殖
So what's made this upheaval worthwhile?
这种变动的好处在哪里
The answer lies in the mud.
答案就在泥巴里
As the tide retreats it exposes mudflats.
退潮时暴露出泥地
Sunlight hits the rich silt
阳光照在肥沃的淤泥上
and tiny plants and animals flourish there.
泥地上的微小动植物蓬勃生长
All food for a mudskipper.
全都是弹涂鱼的食物
But life on land is not without problems,
但陆上生活并非无忧无虑
it's hard work to find a mate.
因为配偶难寻

重点解释

Success, and it's quick to get back to its shell.成功，它迅速钻回它的贝壳里

get back:回来,返回

It'll be good to get back home again.

能重新回到家里一定会很愉快的。

Its life is very different from that of most fish.它的生活和大多鱼类截然不同

be different from:和 ... 不同

Their school is different from ours.

他们的学校与我们的不同。

His view of life is different from yours.

他的人生观与你的不同。

词义辨析:different, various这两个词都可表示“不同的”。其区别是：

1.different着重在事物之间的差别,可指事物之间的本质差别,也可指事物之间的非本质的差别; various一般指同范围内的不同种类,不强调本质的差别。例如:

I met the old man at various times and various places.

我在不同的时间和不同的地点遇到过这位老人。

2.different后可接单数名词,也可接复数名词; 而various后只能接复数名词。

But life on land is not without problems,但陆上生活并非无忧无虑

on land:在陆地上

Elephants live on land, but fish live in the water.

大象居住在陆地上，而鱼儿居住在水里。

We are glad to be on land again.

我们很高兴又踏上陆地了。