Bed perimeter
[医] 床边视野计
🧩 词语组成解析
bed
[bɛd]
n. 床;苗圃;河床;（地下由黏土、岩石等构成的）地层;
vt. 把…固定在;（某人）发生性关系;给人铺床;
vi. 上床;分层;
🗣️ 情景例句
Notices are displayed on the bus asking people not to smoke.
公共汽车上张贴着请勿吸烟的公告。
Who is the leader of this political party?
谁是这政党的首领？
How long are you planning to stay over here?
你打算在这里呆多久？