There are at l____ 1000 workers in this factory.

There are at l____ 1000 workers in this factory.
There are at l____ 1000 workers in this factory.

There are at l____ 1000 workers in this factory.
填写：least
解析：at least 是一个固定词组,“至少”的意思
翻译：这个工厂至少有1000个工人

at least 至少