When you stand astride a bike - you'll want plenty of room between yourself and the top tube.

当你站在骑自行车-你需要足够的空间和自己的上管。

youdao

When you stand astride a bike - you'll want plenty of room between yourself and the top tube.

当你站在骑自行车-你需要足够的空间和自己的上管。

youdao