To do this feel for the bottom hook by hand and twist the upper hexagon until the bottom hook is locked.

为此，用手摸到底钩，然后转动六角体上部，直至底钩锁止。

youdao

To do this feel for the bottom hook by hand and twist the upper hexagon until the bottom hook is locked.

为此，用手摸到底钩，然后转动六角体上部，直至底钩锁止。

youdao