https://online2.tingclass.net/lesson/shi0529/0008/8532/p12.mp3
https://image.tingclass.net/statics/js/2012
When I saw a poisonous snake on the road I stepped on the gas at once.
当我看到路上有条毒蛇时,我马上加大了油门。
step on the gas比较口语的说法,其实是step on the pedal,踩的是那个踏板。