Elutron
(小型)多用途直线加速器
🗣️ 情景例句
Uh-uh.
嗯。
It is desirable to apply to good schools.
申请好学校是令人向往的。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。