Milligamma
毫微克, 10的-9次方
🗣️ 情景例句
Be careful, I think the neighbors have been spying on us.
小心点，我觉得我们邻居一直在窥视我们。
Marvellous.
妙极了。
Moreover, unlike some of the other insect eaters, spiders never do the harm to us or our belongings.
此外，蜘蛛不同于其他食虫动物，它们丝毫不危害我们和我们的财物。