🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
He did not win, but at least he made the effort.
他虽然没有获胜，但至少已经尽了努力。
I must play my spare time well, or I end up doing nothing.
我必须善于利用空闲的时间，否则生命将会在无所事事中告终。
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。