tin opener的用法和样例：
例句
- I invented a new can opener that was a hot number in the stores.
我发明的新开罐器在商店里可是抢手货。 - Household conveniences such as a washing machine,an electric can opener,and disposable diapers.
家庭便利用具，如洗衣机，电动开罐器，以及免洗尿布。 - I went into a store and bought a can of pork and beans and a can opener.
我到一家店铺买一盒猪肉菜豆罐头和一把开罐头刀。
