sheath的音标是[ʃiːθ]。含义为“鞘；套；外壳；包层”。用法为作名词时意为鞘；套；外壳；包皮。

短语翻译：

1. skin sheath 绝缘套

2. sheathing 包层；包壳；护套；套管

3. sheath knife 鞘刀

例句：

1. The blade was sheathed in the sheath. 刀片插在刀鞘里。

2. The steel blade was sheathed in a plastic sheath for protection. 钢刀片被塑料刀鞘保护着。

3. The outer covering of a cylinder is known as its sheath. 圆柱的外壳被称为它的包层。

sheath的释义是：n. （剑、箭等的）套子；包层；鞘；v. 给…包层。

sheath的用法：

1. Sheaths are usually made of a hard material such as metal or plastic. 鞘通常由金属或塑料等坚硬材料制成。

2. The blade of a knife or sword is contained within a sheath. 刀剑的刀刃被包在鞘内。

双语翻译：Sheaths are used to protect and store items that are sharp or dangerous. 鞘是用来保护和储存尖锐或危险物品的。

常见用法：

1. Sheaths are often used to protect items that are sharp or dangerous. 鞘通常用来保护尖锐或危险物品。

2. A sword's sheath is usually fastened to the belt with a belt buckle. 剑的鞘通常用皮带扣固定在腰带上。

以上信息仅供参考，建议使用时参考权威的英语词典。

sheath的释义、用法及双语翻译如下：

释义：n. 鞘；套；包层；包膜；v. 包层；覆盖。

用法：Sheaths are usually made of a tough material such as leather or plastic. 鞘通常是由皮革或塑料等坚固的材料制成的。 Sheaths are often used to protect the blade of a knife or sword. 刀剑的刀刃通常会用鞘来保护。

双语翻译：The blade of the knife stuck out of the sheath. 刀的刀锋从鞘中露了出来。

常见短语：

1. skin or coat (the blade) of a knife: 刀片或刀身的皮层。

2. put on a sheath: 进入鞘中。

3. take off the sheath: 去掉鞘。

4. a sheath of paper: 一叠纸。

5. a protective sheath for a machine part: 机件的保护套。

6. a sheath electrode: 套管电极。

7. a sheathing layer: 包层。

8. a protective sheath for wires and cables: 电线电缆的保护套。

9. a sheath of leaves: 一层叶子。

10. a protective covering for a wire or cable: 电线或电缆的保护套。

以上就是sheath的相关信息，希望对您有所帮助。