It will be more susceptible to attack by hydroxyl ion.它更容易被羟基离子所作用.Both the free hydroxyl groups readily undergo esterification.两个自由羟基,都容易酯化.The free hydroxyl ion is involved in a further reaction with the silica network...
Before the race, he is fine. But afterwards he is worn out.赛前他状态很好，赛后就筋疲力尽了。She wondered where they were going to rendezvous afterwards.她想知道之后他们要去哪里约会。Shortly afterwards, cuts in defence spending forced the aerospace ind...
乔安妮刚要作保证，丹尼尔就把她打断了。Immediately, Daniel cut in on Joanne's attempts at reassurance.豪谨慎地和邮政副部长丹尼尔·C.罗珀拉近关系。Howe carefully cultivated Daniel C. Roper, the Assistant Postmaster General.每次我都很惊讶，尼尔怎么能讲出这么索然无味的东西。Neil'...