Prolonged fasting can be dangerous
长时间的禁食是很危险的
and Valter thinks it should
瓦尔特认为
only be undertaken by people in good health
只有身体健康的人才可以禁食
and preferably, under close supervision.
并且最好是在他人的监督下进行
So he will be keeping an eye on me.
所以他会好好监督我的
OK, I've decided I'm going to try this fast,
好 我已经决定尝试禁食了
which is going to be a three-and-a-half-day fast
这次禁食会持续三天半
and all I'm going to have
在这期间我只能喝
is lots of water, black tea
大量的水 红茶
and one 50-calorie Cup-a-Soup a day.
每天50大卡热量的袋装速溶汤
Now... Oh, God,
现在 我的天哪
I have never done anything quite like this before,
我以前从没做过这种事
so I imagine it's going to be really tough.
所以我想这次肯定特别痛苦
But I'm interested.
但我很想尝试
I'm also, I must admit, quite concerned about some of
我得承认 我很担心那些坏消息
the rather bad news, health news I've been getting recently,
那些我最近知道的有关我健康的消息
so, um...it'll be a challenge,
所以 这是一次挑战
but I'm sure I'll manage it.
我相信我能做到
Reasonably sure.
理论上相信
And so, my fast begins.
我的禁食开始了

重点解释：

1.keep an eye on 留意； 照看

例句：He asked his neighbour to keep an eye on his house.
他请邻居照看他的房子。

2.concern about 对 ... 的关心

例句：He is full of concern about his sick mother.
他非常挂念他有病的母亲。