First circuiation
[医] 原始循环
🧩 词语组成解析
first
[fɝst]
n. 第一，最初;头等;一号，;[乐]高音部;
adv. 最早，最初;首次;宁愿;优先;
adj. 第一流的;最初的，最早的;基本的，概要的;高音的;
num. 第一;
[医] 循环
🗣️ 情景例句
I expect that I will be back on Sunday.
我预计星期日回来。
Now, we're doing something new making skin strong enough that it doesn't wrinkle, become dry, or develop blemishes.
现在我们正在做一些改进，使皮质变得坚韧而不致有皱纹，变干或产生磨损。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。