Methanometer
甲烷计; 沼气检定器
🗣️ 情景例句
His personality left a deep impression on us.
他的人品给我留下了深刻的印象。
Milk,butter,and cheese are shipped here from the dairy farms.
这里的牛奶，黄油，和奶酪都从奶场装运来。
Tell Mary we'll be late for dinner this evening.
你告诉玛丽，今晚吃饭将晚到一会儿。