common salt中的common是什么意思啊?

common salt中的common是什么意思啊? common common common in common中的common是什么词性 Common sense,common heart, Boston Common的意思是? common的比较级是more common还是commoner? have in common “common”是形容词还是名词 in common quite common common coral be common common denominator use common common是什么意思 in common common adverbs