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
Why don't you go to your room, Mom, and get some sleep.
为什么不到你的房间去？妈妈， 去睡一会儿。
He likes playing the eletronic organ.
他喜欢弹电子琴。
when he knew that he was dying, he made me promise to go on my own.
他知道自己已奄奄一息，于是他要我答应一定单独回故乡一趟。