Senn's test
[医] 森氏试验(用氢通入肠内诊断肠穿孔)
🧩 词语组成解析
🗣️ 情景例句
What's the problem, Richard?
有什么问题吗 Richard
The mining area is centered large in the north.
那里的采矿区大部分集中在北部。
Collecting, by occupying spare time so constructively, makes a person contented, with no time for boredom.
收藏活动通过富有建设性地利用业余时间使人感到心满意足，不再有无聊之日。