Femtogram
毫微微克(10的-15次方克)
🗣️ 情景例句
So, you're an exchange student.
哦，你是一名交换学生。
Therefore,we always put quality as the first consideration.
因而，我们总是把质量放在第一位来考虑。
Then she touched me lightly on my arm and made me burst into laughter.
然后她轻轻地触摸我的手臂，使我哈哈大笑。