Trichechiformes
海牛形亚目
🗣️ 情景例句
In face, Australia is the only country that is also a continent.
事实上，澳大利亚是唯一作为洲的国家。
One scabbed sheep will mar a whole flock.
一羊生癣，群羊受害。
The lady who is standing behind the counter.
站在柜台后面的那位女士。