Sheathing is a protective outer cover — the layer you put on so the thing underneath does not get hurt, wet, or worn.

Sheathing sheathing覆板、護層 is a protective outer cover是保護用的外層 the layer you put on你加上去的那一層 so the thing underneath does not get hurt, wet, or worn好讓底下的東西不會受傷、變濕、或磨損。

Builders use it a lot: before the pretty outside of a house goes on, they fix boards or panels to the wooden frame of a wall or roof. That hidden skin is the sheathing.

Builders use it a lot建築工人很常用這個詞 before the pretty outside of a house goes on在房子好看的外層裝上去之前 they fix boards or panels to the wooden frame of a wall or roof他們會把木板或面板固定在牆或屋頂的木造骨架上。That hidden skin那層藏起來的皮 is the sheathing就是sheathing。

On a ship, sheathing is the outer cover of the hull; older ships even had copper sheets nailed on, so worms would not eat the wood.

On a ship, sheathing在船上，sheathing is the outer cover of the hull指的是船體的外層 older ships even had copper sheets nailed on舊船甚至會釘上銅片 so worms would not eat the wood好讓蟲不會把木頭吃掉。

Electricians use the same idea for the tough coat around a cable. People also use sheathing for the work of putting that cover on, not only for the material itself.

Electricians use the same idea電工也用同樣的概念 for the tough coat around a cable指電纜外面那層堅固的外皮。People also use sheathing人們也會用sheathing這個詞 for the work of putting that cover on指裝上那層外皮的工作 not only for the material itself不只是指材料本身。

It is a practical, slightly technical word — you hear it from builders, boat people, and engineers, not in everyday small talk. Though actually, in loose talk someone may say sheathing when they only mean “a cover,” even if it is not that building-or-ship layer.

It is a practical, slightly technical word這是個實用、有點技術性的詞 you hear it from builders, boat people, and engineers你會從建築工人、造船的人、和工程師那裡聽到 not in everyday small talk不是日常閒聊會用的。Though actually, in loose talk someone may say sheathing不過其實，隨口說話時有人可能會說sheathing when they only mean 'a cover'但其實只是想說'一層蓋子' even if it is not that building-or-ship layer即使不是指那種建築或船體的外層。