He avoided answering my questions.他避而不答我的问题。Don't degrade yourself by answering him.不要自贬身分去搭理他.Problem of agonistic problem answering question having a pen, ballot answering question, risk to wait.竞赛题型有笔答题 、 抽签题、抢答题...
Grafting can join scions with desirable qualities to rootstock that is strong and and insects.嫁接可以使品质优良的接穗接在生命力强而且抗病虫害的砧木上.The aminolignin flocculant was prepared based on calcium lignosulfonate, diethylamine and epichlo...