I know that before the evening is over i shall be thoroughly exhausted ; if i am lucky , that is , if i can worm a few francs out of him on some pretext or other , i will duck him the moment he goes to the toilet 我明白不等今晚過去我就會(huì)精疲力竭的,如果運(yùn)氣好我就在他上廁所時(shí)乘機(jī)溜之大吉-也就是說,如果我能以某種借口從他那兒先騙到幾法郎。