Gravel bed
[机] 砂砾层
🧩 词语组成解析
gravel
['ɡrævl]
n. 沙砾，碎石;砾石;[医]结石;
vt. 以砾石铺路;使困惑;使（船）搁浅在沙滩上;
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
what you were thinking about regarding going back to work.
是否打算回去工作。
Lovers live by love, as larks live by leeks.
情侣靠爱情生活，正像云雀靠韭葱生活一样。
Why isn't Mrs. Lee's cat catching the mice?
李太太的猫为何不在抓这些老鼠呢？