must have
必須要有;肯定有;應當有
口語·表示必需品或必然性
英文釋義
widely believed or accepted to be true; highly probable or certain
例句
A good dictionary is a must have for any language learner.
典故來源
由“must”和“have”組合而成,強調某物不可或缺或必然存在,常用于推薦或推測。