Chelate
a. 蝥的, 蝥形的, 蝥合的, 象蝥的\\nn. 蝥合物, 生成蝥合物, 与金属结合成蝥合物
🏥 医学释义
螯合，螯合物
🗣️ 情景例句
Yes. About four years ago.
是的 ，大约四年前走的。
We have adopted much more flexible methods in our dealings.
我们在具体操作方法上灵活多了。
But this does not matter, for, as he has often remarked, one is never too old to learn.
但这没有关系，因为正如他常说的那样，人要活到老学到老。