Odu
[医][=optical density unit]光密度单位
🗣️ 情景例句
She just wants love and affection.
她需要爱和关怀。
Mettle is dangerous in a blind horse.
瞎马鼓勇气，正是危险事。
We're having a lot of trouble filling this order.
我们这次供货很有问题。