The higher you go on the swing, the more potential energy you have.

你荡得越高，你就有越多的势能。

youdao

Potential energy is the high part of swinging. The higher you go on the swing, the more potential energy you have.

势能是荡秋千中的高度部分，你荡得越高，获得的势能就越多。

youdao

The advantage of a swing keel is that, with the keel raised, the sailboat can go into shallow water and sits lower on a trailer.

摇摆龙骨的优点在于，当龙骨升起时，船只能在浅水航行，并减低在拖车上的高度。

youdao

Students, protected with a harness and safety net, swing on a trapeze bar from an elevated platform, with the ultimate goal of letting go and being caught by another swinger.

BBC: Run away to the circus in Montreal