Old-boy
老生；（招呼用）老朋友
🧩 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;
boy
[bɔɪ]
n. 男孩，少年;儿子;小伙子，家伙;服务员;
🗣️ 情景例句
How much will it cost?
需要多少钱？
He alone is poor who does not possess knowledge.
没有知识，才是贫穷。
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。