I guess it must require some skills to fly a glider.

我想驾驶滑翔机一定需要些技术。

youdao

When he heard that is going to go for an outing, the classmates even fly thoughts, thinking of outing is going? Some classmates guess: "must be go to happy valley!"

一听说要去郊游了，同学们连心思都飞了，想着郊游是去哪里？有的同学猜：“一定是去欢乐谷！”

youdao

The bee dances for some time. And the length of its dance tells the other bees how far they must fly to reach the flowers.

蜜蜂跳舞有一段时间的话，那他跳舞的时间长短就告诉其他蜜蜂要飞的多远才能看到那些花。

youdao

Some flight schools reacted immediately to the new threat of dangerous student pilots who, at some point, must fly alone to pass tests.

CNN: graphic