Recovered carbon
[化] 回收活性炭
🧩 词语组成解析
v. 重新获得；恢复（recover的过去分词）
🗣️ 情景例句
Do you want a first class, business class or economy seat?
你想要头等舱、商务舱还是经济舱？
None but a wise man can employ leisure well.
唯智者善于利用空闲。
The most economical age to capture an elephant for training is between fifteen and twenty years,
捕捉15至20岁之间年龄的大象进行驯练最为经济。