Alright then smarty pants. No need to boast!

好吧，自作聪明的人。不要吹嘘！

A smart aleck thinks they are very clever and they're very annoying.

smart aleck 这种自作聪明的人，认为们聪明，们烦人。

If children are cheeky they're being wise-arses as you'd say in American English — or wise-ass.

如果有些孩肆无礼，们就是美语中说的那种自作聪明的人，也可以用 wise-ass。

Well, you can call that person a smarty-pants. These know-it-all types can be really annoying.

可以称呼这种人为“自作聪明的人（smarty-pants）”。那类“自以为无所不知的人（ know-it-all）”真得烦人。

I have been described as a smart aleck, for example.

例如，我被描述为一个自作聪明的人。

Some wiseacre scoffed at us as the people with only one sauce.

有些自作聪明的人嘲笑我们是只有一种调味料的人。

So a smart aleck is someone who thinks they are highly intelligent and they try to demonstrate this to others all of the time.

自作聪明的人是那些认为自己非常聪明的人，们总是试图向别人证明这一点。

Unseen by the thoughtless, unrecorded in the diaries of wiseacres, rarely mentioned in the speeches of statesmen, there was swiftly rising such a tide in the affairs of America as Jefferson and Hamilton never dreamed of in their little philosophies.

轻率的人看不到， 自作聪明的人的日记中没有记录，政治家的演讲中也少提及，美国事务中正迅速兴起这样的潮流， 这是杰斐逊和汉密尔顿们的小哲学中做梦也想不到的。