Tiron
钛试剂, 1,2一二羟基苯 -3,5-二磺酸钠
🗣️ 情景例句
You keep getting fatter and fatter.
你一天比一天胖。
To fall to pass the exam
考试落榜
But none of them has been turned to stone yet!
但到目前为止还没有一个变成石头呢！