organotin compound是什么意思

organotin compound是什么意思 compound compound 请问understand是compound word吗? CARDIUM COMPOUND compound sentence the Compound Sentence 并列句 这里的compound是复合的,的意思啊,为什么不叫复合句啊?the Complex Sentence 复合句 compound - complex sentence compound - complex sentence是由什么组成的?是不是句子中一定要有并列连词和从属连词呢 好好说明一下 Some people buy computers and use them every day.这是一个简单句,还是compound? presidential compound什么意思 tkk compound什么意思 open compound什么意思 compound return是什么意思 compound的翻译 potting compound是什么意思 joint compound是什么意思 molding compound是什么意思 compound statement是什么意思