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
Donald passed away a couple of years ago.
Donald几年前去世了。
He must needs swim that is held up by the chin.
身不由己，只得从命。
I think all the changes are easy to see.
我想所有修改过的地方都很容易看出来吧