Trichromate
三铬酸盐
🗣️ 情景例句
I talked with him, and he understands completely.
我与他谈了 ，他完全了解。
Temperance is the best physic.
克制乃是最好的治疗。
Sending a fax is more expensive than posting a letter, but much quicker.
发传真比寄信要贵些，但是要快得多。