ought toshouldhave tohave got toneed tobe obliged tobe required tobe compelled tobe under an obligation to
2
expressing an opinion about something that is logically very likely.
there must be something wrong
名词
1
something that should not be overlooked or missed.
this video is a must for parents
informal：not to be missedvery goodnecessityessentialnecessary thingsine qua nonrequirementrequisite
2
grape juice before or during fermentation.
3
mustiness, dampness, or mold.
a pervasive smell of must
同义词：
moldmustinessmoldinessmildewfustinessdecay
4
a condition of heightened aggression and unpredictable behavior occurring annually in certain male animals, especially elephants and camels, in association with a surge in testosterone level, equivalent to the rutting season of deer and some other mammals.
a big old bull elephant in must
形容词
1
(of a male elephant or camel) in a condition marked by heightened aggression and unpredictable behavior that usually occurs annually in association with a surge in testosterone level.
two musth males competing for a female
1
used to form adjectives and nouns denoting things that are essential or highly recommended.
a must-visit destination
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must的示例
if you must smoke you could at least go in the living room
