Orthographically means “if we look at the letters on the page” — the spelling, not the sound and not the meaning.

Orthographically means意思是 "if we look at the letters on the page"「如果我們看的是紙上的字母」 — the spelling也就是拼寫, not the sound and not the meaning而不是發音，也不是意思。

Two words can be said the same way but still be different orthographically: British colour and American color are like that.

Two words can be said the same way兩個字可能唸法一樣 but still be different orthographically但在拼寫上還是不一樣: British colour and American color are like that英式的colour和美式的color就是這樣。

Though actually, almost nobody uses this word in ordinary talk. You will meet it in language class, in careful academic writing, or when someone wants to be very exact.

Though actually不過其實, almost nobody uses this word幾乎沒有人會用這個字 in ordinary talk在日常對話裡。You will meet it你會在 in language class, in careful academic writing, or when someone wants to be very exact語言課、講究的學術寫作，或有人想講得非常精確時遇到它。

It is an adverb, so it tells you how we are judging the word: we are judging the spelling. It does not mean “correctly.” A sentence can be wrong orthographically (the letters are off) even when the speaker’s idea is clear.

It is an adverb這是個副詞, so it tells you how we are judging the word所以它告訴你我們是從哪個角度在評斷這個字: we are judging the spelling我們評斷的是拼寫。It does not mean "correctly."它不代表「正確」。A sentence can be wrong orthographically一個句子可以在拼寫上是錯的 (the letters are off)（字母錯了） even when the speaker's idea is clear即使說話者的意思很清楚。