Nitrograph
氮气浓度含量测定器
🏥 医学释义
氮气浓度测定仪
🗣️ 情景例句
Of course, I'll visit at least once a year, maybe more.
当然，我最少每年会来拜访一次，也许更多次。
This week he took his first vacation from work in five years.
五年来，他本周破例第一次休假。
A huge iceberg was suddenly spotted by a lookout.
突然，了望员发现一座冰山。