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 didn't get a thing to eat.
他什么也没有吃。
A good book is a best friend who never turns his back upon us.
一本好书，莫逆之交。
Yes, you're right! Thanks.
对，在这儿，谢谢！