【俚语】

Saw v. & n. 锯

【例句】

He sawed through a power cable by mistake.
他错把电线锯断了。

Saw v. 拉锯般地来回移动

【例句】

He was sawing away at his violin, making a terrible noise!
他在小提琴上拉来拉去，发出难听的噪音！

Have seen better days
已经破败；光彩不再

【例句】

My old car has seen better days, but at least it's still running.
我的旧车现在破败了，不过至少还能开。

See things 产生幻觉

【例句】

Lisa says that she saw a ghost, but she was just seeing things.
丽莎说她看见了鬼，她只是产生幻觉而已。

See/get the joke 明白笑点所在

【例句】

Everyone else laughed loudly, but I didn't see the joke.
其他人都在大声地笑，而我却不知道笑点在哪。

See a man about a dog
出去上厕所（隐晦的说法）

【例句】

Now, if you'll excuse me, I need to go see a man about a dog.
现在，如果你不介意的话，我得出去一下。