please tell me how to translate the sentence below in chinese this method of trading is safe,if not safer than giving credit car numbers over telephone.should I translate like that:这种交易方法是安全的，如果不是比在电话上把信用卡的号码告诉别人更安全的话

i didn't wanna meet him on 7 November moring,the foreigner Alexko sent me a messang that he asked me whether i had spare time.to be honest,with free time that afternoon,i were unwilling to tell him the truth and meet him.because not long ago,i sent him a message but he didn't reply me that made me angry.

please tell me the grammer of the sentence below. in 1000 the united nations conference on trade and development concluded that for each dollar developing countries receive in aid the lose up to aid they lose up to 14 dollars just vecause of trade barriers imposed on the export of their manufactured foods.why it use "for".what's the meaning of "receive in"and "aid" in the sentence??