1. have no idea
不知道;不清楚
eg. Right now, we have no idea of the impact of these drug residues or what we can do about them.
目前,我们还不知道这些药物残留会对身体产生什么影响,也不知道该对它们做些什么。
eg. However, I have no idea where to go.
但是,我拿不定主意去哪儿。
2. sit down
坐下;扎营
eg. Let's sit down and take a rest for a while.
我们坐下来,少憩片刻吧。
eg. They should sit down to talk out their differences.
他们应该坐下来通过商谈来消除他们之间的分歧。
3. all over
到处,遍及;浑身;全部结束
eg. They placarded all over the country.
他们在全国到处张贴布告。
eg. He soaked all over.
他浑身都湿透了。