both英 [b??θ] 美 [bo?θ] adj. 二者,两者都 pron. 二者 adv. 二者,二者都 conj. 不仅…而且…,…和…都 (1)两个;两个都 You use both when you are referring to two people or things and saying that something is true about each of themShe cried out in fear and flung both arms up to protect her face...她吓得大叫,并且抡起双臂护住了自己的脸.Put both vegetables into a bowl and crush with a potato masher.把这两样蔬菜都放进一个碗里,然后用捣土豆器把它们捣碎(2)连词不仅…而且…;…和…都;既…又…You use the structure both...and when you are giving two facts or alternatives and emphasizing that each of them is true or possible.Now women work both before and after having their children... 现在妇女在生孩子前后都要去工作.Any such action would have to be approved by both American and Saudi leaders. 任何这样的行动都必须获得美国和沙特领导人双方的批准1.The vehicle that permitted both communication and acceptability was social revolution. 既能实现交流又能被广为接受的手段就是社会革命. 2. They have both behaved very badly and I am very hurt. 他们俩都很不友善,让我非常难过. 3. Featured are both his classics and his latest creations. 他的经典作品和最新创作都很独特. 4. The degree provides a thorough grounding in both mathematics and statistics.该学位课程将为数学和统计学打下扎实的基础. 5. Both sides have agreed to demobilize 70% of their armies. 双方都同意各自遣散70%的军队both 是两者都。。。as as 是和。。一样。。。这两个词组完全没关系啊,意思差很多。both是都怎么样,as as是像什么一样,有区别的both 和as as意思差不多,一般来说两者不连用,只会选用其中一种。所以是both he and I 或 he as well as I。both 表示的是双方,both he and I 的主语既不是“他”,也不是“我“,而是”他和我“两个人,所以谓语动词一定是用复数形式。