sheath
US /ʃiθ/
・UK /ʃi:θ/
B2 中高級多益
n.名詞鞘套；護套
The cat's claws retracted into their sheath
影片字幕
神經元結構概述 (Overview of neuron structure)
07:04
- Large axons are usually wrapped in a sheath
較大的軸突通常外圍
- And axons that have a myelin sheath
而這些具有髓鞘包覆的軸突
蚊子不要來！可怕的蚊子其實有六根針？！ (How Mosquitoes Use Six Needles to Suck Your Blood | Deep Look)
03:18
- First, a protective sheath retracts—see it bending back?
首先，它們有一個會收縮的保護鞘，看到它向後彎了嗎？
- If you look at a mosquito's head under a microscope, you can see what that sheath protects.
如果用顯微鏡觀察蚊子的頭部，你就會看到那個鞘是在保護什麼。
16 個洗髮乳的小事實 (16 Shampoo Facts (Incl. Why There's Silicone In Your Shampoo!) - mental_floss - List Show (302))
05:33
- The coating smoothes them down and adds a lubricating and protective sheath to keep
包覆能使它們更光滑，且增加具潤滑與保護性的防護層，
