Keep your eye on the ball 源于棒球等球类运动，盯紧球，现在表示的意思是警惕，提高注意。（ ）
举一反三
- Keep your eye on the ball 源于棒球等球类运动，盯紧球，现在表示的意思是警惕，提高注意。（ ）
- You may ask your ___________ neighbor to keep an eye on your house while you’re away. A: next-room B: next-wall C: next-door
- You keep secrets from your own family? Here ‘keep secrets from’的意思是：（ ）。
- When starting a new creative project it is better to keep an eye on the feasability of your solution to avoid problems in the next stages.
- 幼儿球类活动主要以球类游戏 、球类区域活动、球操等结构形式开展。