Biochar
生物炭
🗣️ 情景例句
That's only part of it.
这只是一部分原因。
What is the total circulation of this journal.
这份报刊总发行量多少？
The lawyer ascertained that a policeman had indeed dealt roughly with foreigners on several occasions.
律师证实有个警察确实多次粗鲁地对待外国人。