【简答题】v. laugh lightly in a nervous or silly way
【单选题】— Is there any possible way to help the children get rid of such a bad habit? — To be honest, it's very hard, but we ____ on this problem. [ ]
【简答题】A r way of expressing 3 000 000 V is .
【简答题】___________ v. to do things in a particular way
【单选题】吃糖之后再吃苹果,会觉得苹果很酸,这属于 ( )。
【单选题】--- Is there any possible way to help them get rid of such a bad habit? --- To tell the truth, it’s very hard. But we on this problem trying to improve the situation.
【简答题】v______by way of; through
【简答题】v. slightly wet, often in a way that is unpleasant