Once-through
直流，直通
🧩 词语组成解析
through
[θru]
prep. 通过，穿过;经由;透过;凭借;
adv. 从头到尾;彻底;自始至终;
adj. （电话）接通;通话完毕;有洞的;直达的;
🗣️ 情景例句
We were very young.
我们那时很年轻。
It seems he's very fond of you.
看起来他好像很喜欢你。
the strangest of them being perhaps the hovercraft.
其中最新奇的要数气垫船了。