A taco is a Mexican dish: a flat round tortilla, traditionally made from corn, folded in half around a filling — usually meat, and often beans, cheese, salad, onion, coriander and a squeeze of lime. There are two kinds worth telling apart, because students often only know one.

A tacotaco is是 a Mexican dish一道墨西哥菜：a flat round tortilla一片扁平的圓形玉米餅，traditionally made from corn傳統上是用玉米做的，folded in half around a filling對折包住餡料——usually meat通常是肉，and often還常常加 beans, cheese, salad, onion, coriander豆子、起司、生菜、洋蔥、香菜 and a squeeze of lime再擠一點萊姆汁。There are兩種 two kinds worth telling apart值得分清楚，because因為 students often only know one學生常常只知道其中一種。

The hard taco is the crisp U-shaped shell sold in supermarket kits — that is largely an American invention, and it is what most people in Taiwan picture. The soft taco, a warm soft tortilla folded over the filling, is what people eat in Mexico, usually small, usually two or three at a time from a street stall. Both are called tacos in English; if the difference matters you say hard-shell or soft-shell.

The hard tacohard taco is是 the crisp U-shaped shell sold in supermarket kits超市套組裡賣的那種U形脆殼——that is largely an American invention這主要是美國人發明的，and也是 it is what most people in Taiwan picture大部分台灣人腦中的畫面。The soft tacosoft taco，a warm soft tortilla folded over the filling也就是溫熱、柔軟的玉米餅包住餡料的那種，is what people eat in Mexico是墨西哥人真正在吃的，usually small通常小小一個，usually two or three at a time from a street stall通常是路邊攤一次吃兩三個。Both這兩種 are called tacos in English在英文裡都叫taco；if the difference matters如果差別很重要，you say你可以說 hard-shell or soft-shellhard-shell或soft-shell。

Grammatically it is an ordinary countable noun: a taco, two tacos. Watch the collocations — you eat tacos, you order tacos, you make tacos, but you do not 'drink' or 'cook a taco' in normal speech, and Taco Tuesday is a fixed American habit-phrase you may see in shows and advertising. The word also lives in compounds you will meet: taco shell, taco truck, taco stand, taco seasoning, and fish tacos (a well-known variety).

Grammatically從文法上來說，it它 is是 an ordinary countable noun一個普通的可數名詞：a taco, two tacosa taco，two tacos。Watch the collocations注意搭配詞——you eat tacos你eat tacos（吃）、you order tacosorder tacos（點）、you make tacosmake tacos（做），but但 you do not 'drink' or 'cook a taco' in normal speech一般不會說'drink'或'cook a taco'，and而 Taco TuesdayTaco Tuesday is a fixed American habit-phrase是一個固定的美式習慣用語 you may see in shows and advertising你可能在節目和廣告裡看到。The word這個字 also lives in也活在 compounds you will meet你會遇到的複合詞裡：taco shelltaco shell（脆殼）、taco trucktaco truck（餐車）、taco standtaco stand（攤位）、taco seasoningtaco seasoning（調味料），and還有 fish tacos (a well-known variety)fish tacos（一種有名的口味，魚肉taco）。

In casual American speech it can also work as a verb meaning to bend or fold something in half — a bicycle wheel that hits a kerb badly is said to be tacoed. That use is slang, mostly among cyclists, and you can leave it aside until you meet it.

In casual American speech在美式口語裡，it它 can also work as也可以當...用 a verb動詞 meaning to bend or fold something in half意思是把東西折彎、對折——a bicycle wheel that hits a kerb badly如果腳踏車輪子重重撞到路緣 is said to be tacoed就會說它tacoed了。That use這種用法 is是 slang俚語，mostly among cyclists主要在騎自行車的人之間使用，and而 you can leave it aside你可以先放著 until you meet it等遇到了再說。