某人在某个时间段很忙 英语句式

1、用 be busy + 必要的介词
　　One is busyduring … 某人在某个期间很忙.
　　One is busy at …某人在某个时刻很忙.
　　One is busy in …某人在某段时间很忙.
　　One is busy on …某人在某天很忙.
2、也可以用 be in sometime’s whirl ofactivity 形象地比喻.如：
　　She was in half an hour's whirl of activity 她忙碌了半个小时 .
　　She was in a whole day's whirl of activity 她忙碌了一整天.
　　She was in a month's whirl of activity 她忙碌了一个月.

sb is busy doing sth at some time~ some time一段时间的意思~~ sometime (某个时间 adj &adv)

你好，Somebody is very busy at sometime.