Backing sand
[机] 背砂
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
Weight training makes me feel good.
举重训练使我感觉不错。
I'm afraid you will be disappointed.
我怕你会失望。
At exactly that moment, the telephone rang.
恰恰在此时，电话铃响了。