- 重点词汇
- 震动
shake; vibrate; tremble; quake; jolt; shock; rock; convulse; shudder; quiver; jar; vibration; tremor; thrill; convulsion; tremulous
- 避孕套
condom; sheath; rubber
- 怎么
how; why; what; what about; how about
- 视频
video; video frequency; visual frequency; vision frequency; recording; videotape; video record