Trichromate
三铬酸盐
🗣️ 情景例句
No,
不对，
Jeff was not pleased with his school grades.
杰夫不满意自己在学校的成绩。
to overcome all but the most instantly fatal illnesses and accidents.
了暴病而死或意外事故外，至少足以克服一切一般疾病和事故。