Sievert
unit [核]西韦特单位(γ射线剂量单位)
🗣️ 情景例句
I am planning to write an editorial that I think will help you.
我计划写一篇社论， 我认为应该能帮助你们。
Who is going to show?
谁表演？
the thought of rest will be not unwelcome.
有长眠的愿望未尝不是一件好事。