Sievert
unit [核]西韦特单位(γ射线剂量单位)
🗣️ 情景例句
I never could tie one of those ...
我从来就不会打那一类的……
Because of the type of purchase, we can only ship by road.
由于商品的性质，我方只能使用公路运输。
Oh, a lot of different things! One machine helps them to put rice in bags.
能做好多不同的事情呢！比如能帮助农民把大米装袋等。