捕鼠
I was busy making a new device for catching rats, mark came and dragged me to see the flower show.───我正忙着做一种新的捕鼠装置时，马克走来拖我去看花展了。
I was busy making a new device for catching rats when Mark came and dragged out to a flower show.───我正忙着在做一种新的捕鼠器装置时，马克走来拖着我出去看花展去了。
I was busy making a new device for catching rats when Mark came and dragged me out to a flower show.───我正忙着做一种新的捕鼠(rats)装置时，马克走来拖着我出去看花展了。
I was busy making a new device for catching rats when Mark came and dragged me out to a flower show.───我正忙着做一种新的捕鼠装置时，马克走来拖着我出去看花展了
Cats now live on cat food rather than catching rats for their food.───猫已以猫粮为主食而不是抓老鼠为食。
catching out───发觉…有错误
catching pens───抓笔
batching plants───配料场，配料车间
catching on───理解，明白；变得流行
catching pen───抓笔
catching up───赶上；把…缠住；指出（某人的）错误；使迷住（catchup的现在分词）
latching onto───紧抓；获得；明白；与…要好