Stacking density
[化] 堆积密度
🧩 词语组成解析
[计] 叠卡
🗣️ 情景例句
Oh, it's a quarter to four,
噢 ，差十五分就四点了，
There are spots in (or on) the sum.
人孰无过。
Sam and I had lunch together today. We went to a restaurant.
我和萨姆今天一起吃的午饭。我们去了一家饭店。