Sigma.
[医] 千分之一秒
🗣️ 情景例句
What time would you like to receive the call?
您想何时叫您？
I succeeded because I willed it; I never hesitated.
我成功是因为有决心，从不犹豫。
Though they may atttain considerable accuracy in the perception of flat form,
虽然他们对平面形的感觉能达到相当准确的程度，