9. What about the temperature in the pool now?
游泳池里的水温怎么样？
还能这样说：
What is the temperature in the pool?
Is the temperature proper to swim?
谚语：
What must be must be.
该来的挡不住，该去的留不了。
10. I am timid about swimming in the deep sea.
我不敢在深海里游泳。
还能这样说：
I dare not swim in the deep sea.
I'm afraid to swim in the deep water.
应用解析：
a timid reply 战战兢兢的答复；
as timid as a hare 胆小如鼠；
be timid of 不敢
11. If the beginners go to the deep end, they should ask the lifeguard to help them.
如果初学者进入深水区，应该向救生员求助。
还能这样说：
The beginners need ask the lifesaver for help if they go to the deep end.
Beginners in the deep end need turn to the lifeguard for help.
应用解析：
Between the devil and the deep blue sea.
进退维谷，左右为难。
12. It must be very interesting to swim with sharks.
和鲨鱼一起游泳一定很有趣。
还能这样说：
Swimming with sharks must be fascinating.
It must be fun to swim with sharks.