Marsk
[经] 沼气, 甲烷
🗣️ 情景例句
Very splendid. How about patent rights?
很不错。它的专利权怎么样呢？
I've got a pain in my back.
我的后背有点疼痛。
I love travelling in the country, but I don't like losing my way.
我喜欢在乡间旅行，但却不愿意迷路。