it is

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/10 06:45:57

it is
it is

it is
it is before
这是之前
你是我的小芝麻
你有问题,
芝麻一帮一,问题全无一
万千芝麻是一家,团结合作靠大家

如果是it is和before中间是时间的话 就表示直到什么时候才做什么，你可以在电脑上搜一下 然后有一些例句

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