at least 是至少的意思 。at most 是至多的意思 。
at least=至少 The old man is at least 80 years old. at most =最多 You can play computer games for at most 3 hours a day.
at least 最少，至少 at most 最多
at least=至少 The old man is at least 80 ayears old. at most =最多 You can play computer games for at most 3 hours a day.
at (the)least 至少
at (the) most 至多
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