When a bird or an animal moults, it loses old feathers or hair so that new ones can grow. Birds moult; some mammals moult their coats when the season changes.

When a bird or an animal moults當一隻鳥或動物moult時, it它 loses old feathers or hair會掉落舊的羽毛或毛髮 so that new ones can grow好讓新的長出來. Birds moult鳥類會moult; some mammals moult their coats一些哺乳類也會換毛 when the season changes當季節轉換的時候.

You can also use moult as a noun: the moult is the time, or the process, when this happens. It is the normal word in biology and in ordinary talk about pets and wildlife.

You你 can also use moult as a noun也可以把moult當名詞用: the moult這個moult is the time, or the process指的是這段時間，或這個過程 when this happens這件事發生的時候. It它 is the normal word是常見的說法 in biology在生物學裡 and in ordinary talk about pets and wildlife也用在日常談寵物和野生動物.

British spelling is moult; American English writes molt. Though actually, the l in the British spelling was slipped in later by mistake — people thought the word came from French, like fault and vault, but it did not.

British spelling is moult英式拼法是moult; American English writes molt美式英語則寫molt. Though actually不過事實上, the l in the British spelling英式拼法裡的這個l was slipped in later by mistake是後來被誤加進去的 — people thought the word came from French人們以為這個字來自法文, like fault and vault就像fault和vault一樣, but it did not但其實不是.

Snakes losing their skin are usually said to shed, not moult, even though the idea feels close.

Snakes蛇 losing their skin脫皮 are usually said to shed通常會說shed, not moult而不是moult, even though the idea feels close雖然概念感覺很接近.