Guanido
胍基
??? 情景例句
I have no idea about fashion there days, which is why I dress so plainly.
我對(duì)現(xiàn)在的時(shí)裝潮流一竅不通，這就是我穿得這么普通的原因。
Civility costs nothing.
禮貌不須什么代價(jià)。
No pain，no gain.
不勞無獲。