🧩 词语组成解析
old
[old]
adj. 老的;古老的;以前的;（用于指称被替代的东西）原来的;
n. 古时;
world
[wɝld]
n. 世界;地球;领域;尘世;
crayfish
[['kreifiʃ]]
n. 小龙虾
🗣️ 情景例句
but, unfortunately,
但是， 很不幸，
I ought to talk to him.
我应该和他商讨。
You might have left it in the shop.
可能你把它落在店里了。