如何理解这句话：You should all be helping each other to improve.你们都应该互相帮助来提高（成绩）.be helping 是什么语法,如何题解,

come as you 如何理解这句话? 如何理解这句话：You should all be helping each other to improve.你们都应该互相帮助来提高（成绩）.be helping 是什么语法,如何题解, 如何理解这句话 they should walk in time to the music这句话中的in time 如何理解 they should walk in time to the music这句话中的in time 如何理解 如何翻译这句话?“you should use the hand you were born to use. 如何理解为人民服务这句话 如何理解”知识就是力量”这句话 如何理解“君子之交淡如水”这句话? 如何理解”隔行如隔山“这句话 如何理解“难得糊涂”这句话? you can make friends by doing what a friend do.这句话该怎么翻译.if you want a friend ,be one .如何理解，是这道题的题目。 请教英语大师,这句话怎么理解?I told you they have this class on Friday afternoon,so you should have come a bit earlier.后半句为啥要用完成时呢? for you,thousand times over 这句话应该如何理解如何翻译? want前面可以用情态动词（如should)吗?这句话对吗 You should want to have a swim. 这句英语如何理解,Punishments you set怎么理解,set在这里应该是什么意思?Punishments you set should be resonable. why do you think she should get a work这句话错哪了 when my birthday comes,you should give me a big birthday present.这句话正确吗?