Sand-clocks
(sand-clock 的复数) 沙漏（一种计时器）
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
n. 钟表；时钟（clock的复数）
🗣️ 情景例句
Remember your father-in-law's a pediatrician.
记住你公公是小儿科医师。
It's nice and sweet.
它的味道甜美。
and because there is so much of it the function would seem to e important.
睡眠占去那么多时间，所以其作用似乎还是很重要。