The outer surface of the leaf has a waxy coating called a cuticle which protects the leaf.

叶子外表有一层像蜡一样的覆盖层，这个层被叫做表皮，是用来保护叶子的。

youdao

If you don't regularly get a manicure or have a cuticle pusher in your beauty stash, simply use a warm washcloth to push back your cuticles.

如果你不常去做指甲护理，化妆包里又没有美甲推，简简单单一条热毛巾也能用来推去角质。

youdao

The hard shell on a beetle is an outside protection, as is the "skin", called cuticle, of an earthworm.

甲壳虫身上的硬壳是外表保护层，就像蚯蚓的“皮肤”，它叫角质层。

youdao

Cuticle wax is a solid oil, and is just as susceptible to the diatoms' charms as any other oily substance.

ECONOMIST: Pest control

"You get the cuticle protected for a longer time, " Dr. Pichardo-Geisinger says.

WSJ: Old Hair Days: Products to Help Manage Gray and Thinning Hair

Gently pull back the cuticle, and really scrub the nail, not just wipe them, with a cleanser.

FORBES: 5 Celebrity Beauty How To's From Eyebrows To Updos