1. Expression：make ducks and drakes of

Explanation：To squander; waste.（挥霍，浪费）

Example：Don't play ducks and drakes of this internship—it's a great opportunity, even if it doesn't pay!

不要浪费了这个实习医生职位——这是一个很好的机会，即便没有报酬。

Don't make ducks and drakes of your time in reading those dime novels.

不要把你的时间浪费在读那些胡编乱造的廉价小说上。

I felt exhausted and vacant from the constant making ducks and drakes of time.

我由于旷日持久地虚度光明而感到百无聊赖，身心虚弱。

Why should we make ducks and drakes of our time on luxuries like music or victorian poetry?

为什么要浪费时间去学音乐或维多利亚时期的诗歌等那些华而不实的东西呢？

2. Expression：sitting duck

Explanation：Someone or something vulnerable to attack. （容易受到攻击的人或者事物）

Example：When my car broke down in a bad neighborhood, I felt like a sitting duck, just waiting to get robbed.

当我的车在一个糟糕的街区抛锚的时候，我觉得自己就像一个坐以待毙的人，等着被抢劫。

The president's comments on taxes made him a sitting duck to critics.

总统对税收的意见使他成为众矢之的。

My friend Joe is a sitting duck for any phony offer that promises to make him rich in a hurry. Anytime a fast-talking salesman comes along with a promise to make Joe a millionaire overnight, Joe will hand over his money. And, of course, he'll never see it again.

我的朋友乔伊对任何说是能让他很快发财的骗局都相信。只要那些滔滔不绝的推销员向他保证他们能够一夜间使他成为百万富翁，不管是谁，他都会把钱交给他们。当然，这些钱他是再也见不到了。

It was early on a Sunday morning and the Americans had no warning. So the battleships and destroyers were sitting ducks when the Japanese bombers swept in from the sea.

那是一个星期天的清晨，美国人根本没有得到警告。所以当日本轰炸机从海上飞来的时候，那些战舰和驱逐舰只能束手待毙。