A two-piece is clothing made of two matching parts that are worn together and sold together. For a man's suit, that means a jacket and trousers cut from the same cloth — a two-piece suit — as opposed to a three-piece, which adds a waistcoat. Shops and tailors use the word constantly, and in a shop you can drop the noun and just say 'a two-piece' and everyone knows you mean the suit.

A two-piece is是 two matching parts兩個成套配對的部分 made of做成的 clothing衣物，worn together一起穿 and而且 sold together一起賣。For a man's suit對男士西裝來說，that means那指的是 from the same cloth從同一塊布 cut裁出來的 a jacket外套 and和 trousers長褲——a two-piece suit兩件式西裝——as opposed to相對於 which adds多加 a waistcoat一件背心的 a three-piece三件式。Shops商店 and和 tailors裁縫師 constantly經常 use the word用這個詞，in a shop在店裡 you你 can可以 drop the noun省掉後面的名詞，just say只說 'a two-piece'，and everyone knows大家就知道 you mean你指的是 the suit那套西裝。

The same word covers a woman's matching skirt-and-jacket, and — in everyday speech, especially in shops and adverts — a two-piece swimsuit, which is simply a bikini said politely.

The same word同一個詞 covers也涵蓋 a woman's女士 matching成套的 skirt-and-jacket裙子加外套，and而 in everyday speech在日常口語裡——especially尤其 in shops and adverts在商店和廣告中——a two-piece swimsuit兩件式泳裝，which is simply其實就是 said politely用客氣方式講的 a bikini比基尼。

Outside clothes, 'two-piece' can describe anything that comes in two parts: a two-piece drum kit, a two-piece bathroom set. It goes before the noun, and the noun after it stays singular: a two-piece suit, not a two-pieces suit.

Outside clothes在衣服之外，'two-piece' can describe可以形容 comes in two parts分成兩個部分的 anything任何東西：a two-piece drum kit兩件式鼓組、a two-piece bathroom set兩件式衛浴組。It它 goes before the noun放在名詞前面，and the noun after it而它後面的名詞 stays singular保持單數：a two-piece suit，not而不是 a two-pieces suit。