canning

1.[c]（盛食品或饮料的）金属罐a metal container in which food and drink is sold

2.[c]一罐（的量）the amount contained in a can

3.[c]（装运液体用的）金属容器，塑料容器a metal or plastic container for holding or carrying liquids

4.[c]喷雾罐a metal container in which liquids are kept under pressure and let out in a fine spray when you press a button on the lid

a can of worms

棘手的问题；难题；麻烦事if you open upa can of worms , you start doing sth that will cause a lot of problems and be very difficult

be in the can

已拍摄好；录制完毕to be completed and ready for use

1.坎宁

2.〈美〉罐头制造业[法]

1.“can”的现在分词

1.The present participle of can