Complexones
氨羧络合剂; 络合滴定试剂
🗣️ 情景例句
Mom! Is it for me?
妈妈 是我的吗
About ten minutes.
大约10分钟。
An even harder situation is to be on the platform in good time for a train and still to see it go off without you.
更难堪的情况是虽然及时赶到站台上，却眼睁睁地看着那趟火车启动，把你抛下。