To date he has collected just under 21000 signatures .

到今，他已经收集了21000个签名。

The greatest leaders are those who can handle a pressure situation by remaining calm and collected .

最伟大的领导人是那些能够以冷静和镇定应付压力局面的人。

Police collected 59 shell casings at the scene .

警察在犯罪现场收集了总共59枚弹壳。

This solid matter is then collected .

然后收集到了这种固体物质。

Darwin collected fossils and beetles .

达尔文收集化石和甲虫。