必须用英语怎么说_英文单词两种
时间：
"Must" 和 "have to" 都可以表示 "必须" 的意思。
"Must" 是情态动词，表示说话人认为应该这样做。
例句：
I must go now. (我现在必须走了。)
You must be careful when you cross the street. (你穿过马路时一定要小心。)
"Have to" 是实义动词，表示事实上需要这样做。
例句：
I have to work tomorrow. (我明天必须工作。)
She has to finish her homework before she goes to bed. (她在睡觉前必须完成作业。)
"Must" 是情态动词，表示说话人认为应该这样做。
例句：
I must go now. (我现在必须走了。)
You must be careful when you cross the street. (你穿过马路时一定要小心。)
"Have to" 是实义动词，表示事实上需要这样做。
例句：
I have to work tomorrow. (我明天必须工作。)
She has to finish her homework before she goes to bed. (她在睡觉前必须完成作业。)