Trichromate
三铬酸盐
🗣️ 情景例句
How long is it going to take for me to get there?
到那里还需要多久时间
He may well be contented who need neither borrow nor flatter.
一个既不用借债又不用奉承人的人，可以称得上心满意足。
He had been there for nearly ten hours.
他已经在烟囱里被困了将近10个小时。