Return sand
[化] 回用砂
🧩 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
An individual's sex and characteristics are determinded by their unique set of genes.
个人性别和性格是由他们特有的一套基因决定的。
Is this your pen? I found it under the desk.
这是你的笔吗？我在桌下捡的。
Some years ago an American psychiatrist named William Dement published experiments dealing with the recording of eye-movements during sleep.
前些年，美国一位精神病学者发表了一篇报告，报告中记录了眼球在睡眠时的活动情况。