Methanometer
甲烷计; 沼气检定器
🗣️ 情景例句
The cassette player and the tapes.
卡式录音机和录音带。
I know he will be able to find way there.
我知道他会找到那里的路。
Diamond necklaces and rings had been beautifully arranged on a background of black velvet.
钻石项链、戒指漂亮地陈列在黑色丝绒上面。