R-f plumbing
[电] 射频垂铅
🧩 词语组成解析
plumbing
['plʌmiŋ]
n. 水管装置;水暖工的工作;管道工程;
v. 用铅锤测量（plumb的现在分词）;探究;
🗣️ 情景例句
Remember catching your first fish?
还记得你第一次钓到鱼的情形吗？
When I was informed of the announcement of my nomination.
当获知我已被提名时。
Happy birthday! said the twins, and gave her a big red box.
“生日快乐！”双胞姐妹说，并将一个大红盒子送给了她。