1. plunge: to (cause something or something to) move or fall suddenly and often a long way forward, down, or into something （使）（某人或某物）驟然下降、驟然移動

2. battalion: a military unit consisting of three or more companies (軍隊的）營，營部

3. intact: complete and in original state ；no damage完整無缺的；未受損傷的

4. sedan: a car with seats for four or five ppl, two or four doors, and a separate area in the back for bags, boxes, and suitcases (可搭載四或五人，有二或四門，後有行李空間的）轎車

5. veer: to change direction 改變方向、轉向

6. rappel: to go down a very steep slope by holding on to a rope that is fastened to the top of the slope 援繩爬下

7. mangle: to destroy something by twisting it with force or tearing it into pieces so that its original form is completely changed 絞壞、撕爛

8. hoist: to lift something heavy, sometimes using ropes or a machine (用繩子或機械）抬起、吊起