英语同义句在线转换My little siser often helps my mother do some housework.
题目
英语同义句在线转换My little siser often helps my mother do some housework.
答案
My little sister often helps my mother do some housework.
= My little sister often helps my mother with some housework.
= My little sister often helps my mother to do some housework.
注：help sb do sth = help sb with sth = help sb to do sth 帮助某人做某事
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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