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
Will you be so kind as to help me out of the difficulty?
帮助我克服困难，好吗？
What do you think about it?
你对此怎么看？
and are capable of a considerable degree of personal affection.
而且会对主人产生相当深厚的私人感情。