不必说的用法和样例：
例句
-
他要养活自己的七个孩子，更不必说还有妻子和父母了。
He had to support his seven children, to say nothing of his wife and parents. -
我们买不起汽车，没有车库的事就更不必说了。
We can't afford a car, not to mention the fact that we have no garage. -
不必说，空气象阳光一样，对我们的日常生活不可缺少。
Air as well as sunlight be, needless to say, indispensable to our daily life.
