您要查找的是不是：
- [US] 换挡shift gear
- 换挡stage changeover
- [US] 谨上Sincerely yours
- 你拐角时要换挡变速。You have to shift as you drive around the corner.
- [US] 住院in the hospital
- [US] 海军部the Department of the Navy
- 我拐弯之前该不该换挡?Should I shift gears before making a turn?
- [US] 公寓楼apartment block
- [US] 国务院Department of State
- 卡车司机换挡上山坡。The truck driver changed gear to go up the hill.
- 超声（US）Ultrasonography(US)
- 灵巧的换挡a slick gear change
- [US] 国务卿Secretary of State
- 换挡叉selector fork
- [US] 开始沸腾a boil
- 换挡器selector
- [US] 邮寄某物mail
- 换挡杆gear level
- [US] 业余时间on one's own time
- 选换挡shift
