Quaife
[人名] 奎夫
??? 情景例句
Chairman Mao said it is necessary to drill as much as possible.
毛主席說，反復(fù)操練是非常必要的。
I am ready to sign the agreement.
我已經(jīng)準(zhǔn)備好了簽合同。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低點(diǎn)）、浪高（從波谷到浪峰的垂直距離）