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
Yes, it is. Come up.
是的 是我。请上来
You can't tell anybody by what they seem.
你不能凭外表判断人。
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。