用英文介绍一种 外国 菜的由来、构成等，总之别介绍做法。

用英文介绍一种 外国 菜的由来、构成等，总之别介绍做法。

一定要弄英文介绍，千万别介绍中国菜。

寿司
Sushi is a Japanese delicacy consisting of cooked vinegared rice (shari) combined with other ingredients (neta). Neta and forms of sushi presentation vary, but the ingredient which all sushi have in common is shari. The most common neta is seafood. Raw meat sliced and served by itself is sashimi.
Types
The common ingredient across all the different kinds of sushi is sushi rice. The variety in sushi arises from the different fillings and toppings, condiments, and their preparation. The same ingredients may be assembled in a traditional or a contemporary way, creating a very different final result. In spelling sushi its first letter s is replaced with z when a prefix is attached, as in nigirizushi, due to consonant mutation called rendaku in Japanese.
History
The ancient form of sushi is fermented fish and rice, preserved with salt in a process that has been traced to Southeast Asia, where it remains popular today. The term sushi comes from an archaic grammatical form no longer used in other contexts; literally, sushi means "sour-tasting", a reflection of its historic fermented roots.
The vinegar produced from fermenting rice breaks down the fish proteins into amino acids. This results in one of the five basic tastes, called umami in Japanese.The oldest form of sushi in Japan, narezushi, still very closely resembles this process. In Japan, narezushi evolved into oshizushi and ultimately Edomae nigirizushi, which is what the world today knows as "sushi".
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