Sand bond
[机] 砂结合力
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
Jack, Would you please read this letter of application I've just written?
杰克，你能读一下这封我刚写的求职信吗？
No sunshine but bath some shadow.
有明必有暗。
One day, the man downstairs went to talk to the man. He went upstairs and knocked the door.
一天，楼下人去找楼上人谈谈。 他上楼敲门。