must
[mʌst]
aux.
必须;
必然要;
（做出逻辑推断）;
（表示坚持）;
n.
必须做的事，必不可少的事物;
葡萄汁;
霉臭;
麝香;
vt.& vi.
（表示必要或很重要）必须;
（提出建议）应该;
得;
（表示很可能或符合逻辑）一定;
adj.
不可或缺的;
狂暴的;
例句:
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Those who have lost their jobs must spend less.
来自BBC
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You must have noticed how tired he sometimes looks.
你一定注意到他有时候显得特别疲惫。
-
"His memory must be completely back, then?" — "Just about."
“这么说，他的记忆一定是完全恢复了？”——“差不多。”
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There must be any number of people in my position.
一定有很多人处在我这种境况。
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'Editors must resign' Yet changes are already visible.
来自BBC
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If you like Strauss, you must hear this.
来自BBC
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She must have been young when she got married.
她结婚时一定很年轻。
来自《权威词典》
-
You must be joking.
你一定是在开玩笑吧。
来自《权威词典》
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You must win, if you do your best.
如果你全力以赴,一定能赢。
来自《权威词典》