Closed riser
[機] 暗冒口
?? 詞語組成解析
closed
[klozd]
adj. 關閉著的，封閉著的;密閉著的，保密的;<美>準備好了的，定了契約的;
v. “close”的過去式和過去分詞;
clos=close關閉+ed已...的→關閉了的
n. 起床者, 叛徒, 起義者, 豎板\\n[化] 上升管
??? 情景例句
As soon as possible.
越快越好。
I'm not familiar with that part. Let me call someone who is more knowledgeable.
那部分我不熟悉，讓我找專業人士來說明。
These days we use a thermos , said Li Lei.
“如今用的是熱水瓶了，”李磊說。