Unit 4Sharingastronautpurchaseanniversaryseedclickdonatevoluntarypoliticaldistributesecurityoperate烤烤(面包等面包等)；敬酒；敬酒烤面包烤面包(片片)；吐司面包；干杯；吐司面包；干杯梳子梳子梳梳(发发)角；角度角；角度目目录录贷贷款款树树干；躯干；大衣箱干；躯干；大衣箱门诊门诊部；小部；小诊诊所所fall in love withcome to an endhave knowledge of sb./sth.do some research onbring hope toin needgo hungryprovide for oneselfin numberadapt towhat if he didnt want to see hernot are easy and funto care forsomething your loved one keeps butdonated a lot of money todo some voluntary workasking to be a volunteerhelp those in needthere is no need to feel regretdistributiondistributed运运转转操作操作动动手手术术起作用起作用operatingbutmattersnot what we say but what we do that本部分内容讲解结束本部分内容讲解结束按按ESC键键退出全屏播放退出全屏播放