只有三月初到四月底以及九月初到十月底的这两段时间才适合登山，就算在这两段时间里，也不超过20天是好天气。

Only the periods between early March and late May, along with early September and late October are fit for climbing, among which less than 20 days are actually fine.

youdao

即便是在美国，复杂的联邦制度一向不鼓励买卖机场，将芝加哥中途机场和其余四个机场私有化的计划也加快了进程。

Even in America, where complicated federal rules discourage either selling or buying airports, a scheme to privatise Chicago Midway and four other airports is picking up speed again.

youdao

我上次的确是想错了。 就算是“每个月四天”，也该是“最多四天*不*挨打”。

In each month, there're hardly four days that go by without her getting beaten.

youdao

And for the space of four hours every night, I feel no boredom.

每晚四小时的学习，我一点也不觉得无聊。

耶鲁公开课 - 政治哲学导论课程节选

Now we don't care what you're eating so nobody-- we're not going to attend to that at all; I mean you could eat Twinkies four times a day and that could be your total diet, or you could eat something else; it doesn't really matter so much.

我不在乎你们吃了什么,我们不关注这点,也就是说你们可以一天吃下四顿奶油夹心,作为一天的饮食,或者吃点别的,这没多大关系

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选