Femtogram
毫微微克(10的-15次方克)
🗣️ 情景例句
I can't wait to tell Richard!
我简直迫不及待想告诉Richard！
He that marries for wealth,sells his liberty.
为财富而结婚的人，出卖了自己的自由。
'And how can you explain that?' she asked.
“那么你对那又作何解释呢？”她问。