Your eyelids are the two pieces of skin which cover your eyes when they are closed.
英漢詞典釋義
n.
眼瞼,眼皮
She lifted one eyelid to see what he was doing.她抬起一只眼皮看看他在做什么。She lowered her eyelids,then sprang them open.她低垂著眼瞼,然后突然睜開。She watched him from behind half-closed eyelids.她半閉著眼觀察他。
眼睛也不眨一下；不露聲色；面不改色
She didn’t bat an eyelid when they told her she’d lost her job. She just calmly walked out.他們告訴她她的工作丟了的時候，她連眼皮都沒動一下，只是平靜地走了出去。
英英詞典釋義
Noun
1. either of two folds of skin that can be moved to cover or open the eye;