你知不知道单单一个顺时针和一个逆时针我就教了几节课？五节课啊！是，我告诉过他们，如果弄不明白就看看手表，时针往哪儿走哪儿就是顺时针，反过来就是逆时针。可是，找遍全班，不是手机就是电子表……不辞职的话我就得花一学期教他们这两个概念啊！

You know not to know only a clockwise and a counterclockwise I teach several stanza lesson?Five class ah!is,I told them,If can't understand'll have a look at the watch,Clockwise where walk where is clockwise,In turn is counterclockwise.but,Searched the whole class,Not mobile phone is electronic watch……Don't resign if I have to spend a semester teach them the two concepts ah!