Separation number
[化] 分离数
🧩 词语组成解析
🗣️ 情景例句
The evening newspaper is cheaper than the morning paper.
晚报比早报要便宜。
Maybe they're farmers.
他们可能是农民。
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此，我们不时地掉过头，怀疑车后是否留下了机油和汽油的痕迹。