英语语法分析

The Geminids are the most active meteor shower and appear each year.

双子座流星雨是最为活跃的流星雨，并且每年都会出现。

The Geminids are caused by the Earth crossing the debris-strewn path of the extinct comet 3200 Phaethon.

双子座流星雨是由于地球穿过3200 Phaethon彗星的轨道而造成的。

However, the Geminids have grown gradually in intensity up until today where it is one of the most spectacular annual showers.

然而之后它的强度不断地增大，直到今天成为最壮观的年度性流星雨之一。