介入超声是什么:I tried to persuade him not to smoke,but he wouldn't listen to me

I tried to persuade him not to smoke,but he wouldn't listen to me “I have my means ”和“I am unable to persuade her ”这两个句子说的是什么意思？ I must try my best to persuade his father .谢谢各位了！ All my life I have tried to be an honest man i've tried to page you twice,怎么翻意 My son tried to flush our ferret down the toilet and I needed to tend to the ferret I tried to call you __ I heard from him,but you were not in.A,since B,that C,until D,as soon as waht are the usual tricks advertisers use to persuade customers? Write an advertisement trying to persuade someone to come to your hometown. scientists tried in vain to do these experiments，翻译