1. shot n. 发射;炮弹;射手
This soldier is a crack shot.
这个战士枪法高明。
2. stupid adj. 愚蠢的,笨拙的,迟钝的
I think he was born stupid.
我认为他生来就愚笨。
3. replaceable adj. 可置换的,可代替的
A person, unlike a machine, is not replaceable.
人和机器不同,是不可替代的。
4. existence n. 存在,生存
According to some philosopher, everything in existence is reasonable.
某位哲学家认为,存在的事物都是合理的。