Semisinusoidal
半正弦(形)的
??? 情景例句
Good morning, Ellen.
早安， Ellen。
Unkindness destroys love.
粗暴毀愛情。
At one point, it seemed certain that their plane would crash.
在有個(gè)地方，飛機(jī)似乎肯定要墜毀了。