1.In March he goes on a survival course and learns about the “umbles”: as hypothermia sets in you mumble, fumble, grumble, stumble, then finally tumble.

1.三月，开始野外生存训练，懂得了寒冷、是么：开始了，咕哝，摸爬，嘟囔，踉跄，终于仆倒在地。