Closed riser
[机] 暗冒口
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
n. 起床者, 叛徒, 起义者, 竖板\\n[化] 上升管
🗣️ 情景例句
He was ill at ease with people whom he didn't understand.
他和不熟悉的人在一起感到不自在。
How many workshops are there in your factory?
你们厂有多少车间？
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某种作用。