Alternatively ??

We can have a party, alternatively just have a chat in a cafe.
這句好像沒有交替地的意思,只有 OR 的意思?是的, 你是對的。
alternative: 兩者(或若干)中擇一的; 非此即彼的
We therefore fear the error must have been due to a typing mistake.
這句好像很類聚 ..不要 due to 可以嗎? 可以的。 We therefore fear it is a typing error. 因此，我們擔心是打錯字。We therefore fear the error is a typing mistake. 因此，我們擔心的錯誤是打錯字。We therefore fear the error is a typo. 因此，我們擔心的錯誤是打錯字。

(1)alternatively是另外,alternately才是交替
(2)due to是由於,不可不要-error是因typing mistake才有,但typing mistake不是那個error.

We can have a party, alternatively just have a chat in a cafe.
這句好像沒有交替地的意思,只有 OR 的意思

對，既然是or的意思，為何用一個咁長的字，而且文法亦不太對，
比較正統的寫法：
We can has a party, alternatively we can just have a chat in a cafe.
或用or
We can have a party or just have a chat in a cafe.
當用or時，不要加個'，'

你問交替的意思，是否你誤會了alterate這個字。這個字才是替換的意思。

We therefore fear the error must have been due to a typing mistake.
這句好像很類聚 ..不要 due to 可以嗎?

類緊->累贅

due to這句其中一個關鍵詞。意思是「由於」
這句是查證出錯的原因，所以指出「因由」是重點。
當然可以用另一個字取代due to，但不可以寫成must have been a typing mistake.因為前面說的error並不是說typing mistake就是問題，而是由於打錯字所以衍生出error來。例如打錯10,000倍而公佈為10,000,000倍這種error.

We therefore fear the error must have been caused by a typing mistake.
字數一樣，但會清楚指出你要表達的是發現「引致」出錯的原因。

We can have a party, alternatively just have a chat in a cafe.
這句好像沒有交替地的意思,只有 OR 的意思= YES, YOUR ARE RIGHT.
It is simple and straight-forward to say:

We can have a party or have a chat in a cafe instead.



We therefore fear the error must have been due to a typing mistake.
這句好像很類聚 ..不要 due to 可以嗎? YES, IT IS CLUMSY. WE CAN REWIRTE IT AS :-

We are afraid that the error must be a typing mistake.
We are afraid that it must be a typing error.

fear is not as good as "are afraid " in these sentences.

1) We can have a party instead of just having a chat in a cafe.

2) We therefore feared that the mistake might be due to a typing error.