A sequoia is a huge tree of the western United States, above all California. Some of these trees are among the tallest living things on earth, and a close kind (often called the giant sequoia) is among the heaviest.

A sequoia巨杉 is a huge tree of the western United States是美國西部的一種巨大的樹, above all California尤其是加州. Some of these trees are among the tallest living things on earth這些樹裡有些是地球上最高的生物之一, and a close kind (often called the giant sequoia) is among the heaviest而一種近親（常被稱為giant sequoia，世界爺）則是最重的生物之一.

In everyday English people are a little loose with the name: they may say sequoia for the tall coast redwood, for the massive giant sequoia, or for both, as if all those famous California giants were one thing. Science splits the names more neatly.

In everyday English在日常英語裡, people are a little loose with the name人們用這個名字用得有點鬆散: they may say sequoia for the tall coast redwood他們可能把sequoia用來指高大的coast redwood（海岸紅杉）, for the massive giant sequoia也可能指巨大的giant sequoia（世界爺）, or for both或兩者都指, as if all those famous California giants were one thing好像那些著名的加州巨木都是同一種東西. Science splits the names more neatly科學上把這些名字分得比較清楚.

You will meet the word in nature films, park names, and in a slightly bookish way to mean something very old and very tall. It is not cafe talk.

You will meet the word in nature films, park names你會在自然紀錄片、公園名稱裡遇到這個字, and in a slightly bookish way to mean something very old and very tall也會在有點文謅謅的用法裡看到，表示非常古老又非常高大的東西. It is not cafe talk這不是咖啡廳裡的閒聊用語.

English took it as a learned borrowing of the Latin science name Sequoia. Many schoolbooks say that name honours Sequoyah, the Cherokee man; the botanist who chose the Latin name never wrote down why, so that story is popular, not proven.

English took it as a learned borrowing of the Latin science name Sequoia英語把它當成一個學術借詞，來自拉丁文的科學名稱Sequoia. Many schoolbooks say that name honours Sequoyah, the Cherokee man很多教科書說這個名字是為了紀念Cherokee（切羅基族）人Sequoyah; the botanist who chose the Latin name never wrote down why選這個拉丁名字的植物學家從沒寫下原因, so that story is popular, not proven所以這個說法只是流傳廣，並沒有被證實.