我想知道你是怎么了现这个开关的，而你又是如何得知就是它导致了WEFL的所有麻烦。

I'd like to know how you know discovered the switch and how you knew that it was the reason for all of the trouble at WEFL.

youdao

我想知道你是怎么了现这个开关的，而你又是如何得知就是它导致了WEFL的所有麻烦。

I'd like to know how you know discovered the switch and how you knew that it was the reason for all of the trouble at WEFL.

youdao