both

1. DET You use both when you are referring to two people or things and saying that something is true about each of them. 两个 (都)

She cried out in fear and flung both arms up to protect her face. 她害怕得哭起来，急忙伸出双臂以保护自己的脸。

2. QUANT Both is also a quantifier. 两个[QUANT 'of' pl-n]

Both of these women have strong memories of the Vietnam War. 两个女人对越南战争有着深刻的记忆。

3. PRON Both is also a pronoun. 两者

Miss Brown and her friend, both from Brooklyn, were arrested on the 8th of June. 布朗小姐和她的朋友，两人来自布鲁克林，于6月8日被捕了。

4. PRON-EMPH Both is also an emphasizing pronoun. 两者都[n PRON]

He visited the Institute of Neurology in Havana where they both worked. 他在哈瓦那参观了他们俩都曾工作过的神经病学研究所。

5. PREDET Both is also a predeterminer. 两者[PREDET det pl-n] [强调]

Both the horses were out, tacked up and ready to ride. 两匹马都在门外被套上了马鞍，随时可以骑。

6. CONJ You use the structure both...and when you are giving two facts or alternatives and emphasizing that each of them is true or possible. …和…都

Now women work both before and after having their children. 如今，女性在生孩子前和生孩子后都工作。