It it very important to make sure that the blade holders won't come off during flying.

它是很重要的，以确保刀片持有人将摘下来，但是不行期间飞行。

youdao

It it very important to make sure that the blade holders won't come off during flying.

它是很重要的，以确保刀片持有人将摘下来，但是不行期间飞行。

youdao