Fluohafnate
氟铪酸盐
🗣️ 情景例句
Marriage is an institution not to be taken lightly.
婚姻是个不能儿戏的体系。
which direction is it to the theatre?
它哪个方向对剧院？
She suddenly got into a panic and stopped her car.
她一惊之下突然把车停了下来。