Fluid resistance
[化] 流体阻力
🧩 词语组成解析
🗣️ 情景例句
Why don't you tell us about your day.
何不告诉我们你这一天过得如何？
One scabbed sheep will mar a whole flock.
一羊生癣，群羊受害。
Two return tickets to London,please.
买两张到伦敦的往返票。