Sievert
unit [核]西韦特单位(γ射线剂量单位)
🗣️ 情景例句
and he really liked my concept.
而且他真的喜欢我的想法。
What's the matter with you?
你怎么啦？
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。