Holofilm
全息底片
🗣️ 情景例句
Right now my hands are full.
现在我忙得不可开交。
I got much volume on the TV set.
我的电视机有很大音量。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）