yiyiling1221
uncertaintymaybe not benot necessarily例:Every rascal is not a thief,but a thief be a rascal.每个无赖不一定是盗贼;每个盗贼必定是无赖。Let's eat now and maybe we could catch a movie later. 咱们现在就吃,说不定吃完能赶场电影.Clouds do not necessarily forecast rain.云层未必预示下雨。
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