Clbp
[医][=chronic low back pain]慢性腰背痛
🗣️ 情景例句
Men and women, young and old, to give us their time.
不管男女老幼 ，请他们贡献时间。
I invited him ti come down, but he wouldn't.
我请他下来，但是他不肯。
The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia;
气垫船在非洲、澳大利亚等交通不发达地区特别有用。