Femtogram
毫微微克(10的-15次方克)
🗣️ 情景例句
Yeah, yeah. The biggest. When do I have to let you know?
是的， 是的， 最大的。我什么时候该给你回音？
We've got to get a bed and a dresser for the bedroom.
我们得为卧房放一张床和一个梳装台。
Some of them were as big as marbles.
有的钻石像玻璃球那么大。