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
Fortunately, I found his house at once.
很幸运地，我立刻找到他家。
An old dog cannot alter its way of barking.
老狗难改吠声。
The man let out cry and jumped back several paces.
那人大叫了一声，惊退了几步。