Plainest
plain（平的）的最高級形式
??? 情景例句
Maybe he's angry.
也許他在生氣。
Will it be convenient for you to explain your plans to him?
你向他解釋計劃將是方便的嗎？
I hate them.I'm sure I've got a low mark.
我討厭法語。我的法語成績肯定很低。