Prodder
做刺或戳的动作的人或给人以激励的人或物
🗣️ 情景例句
You get an a for effort.
你尽了最大的努力。
Nothing comes from (or of) nothing.
无风不起浪。
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）