点击下方单词,选择对的这个单词
1. an abundant tasteless odorless multivalent nonmetallic elementbest known in yellow crystalsoccurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
Synonym: sulfurSatomic number 16
多通过句子记忆单词，而不是单独死记硬背。
