英文譯中文?????

1. use the Present Perfect to say that an action happened at an unspectified time before now.the exact time is not important.You CANNOT use the Present Perfect with time expressions such as "Yesterday"

E.g.I have been to beijing

1. Present Perfect tense 可用於描述一些相對現在曾經發生, 而沒有指定時間
的動作, 確實時間并不重要. 一點要緊記的是: 在一句含有時間詞彙, 例如
\"Yesterday\" 的情況下, 不能運用Present Perfect tense.

例: I have been to beijing
我曾經到過北京.


2..when we talk about how long an existing situation has lasted,even if we don"t give a precise length of time.
E.g they have grown such a lot since we last saw them

2. 當我們談論到一段在事情所經歷的時間, 即使我們沒有提及精確數據,
亦可以用 Present Perfect tense.

E.g they have grown such a lot since we last saw them
例: 自從我們對上一次見過他們之後, 他們已經長高了很多.

3.we use the present perfect to show some connection between what happened in the past with the present moment.

3. 我們可以用Present Perfect tense 來表達一些在過去發生而且與現在有連繫
的事情.

1. use the Present Perfect to say that an action happened at an unspectified time before now.the exact time is not important.You CANNOT use the Present Perfect with time expressions such as "Yesterday"

E.g.I have been to beijing

1. Present Perfect tense 可用於描述一些相對現在曾經發生, 而沒有指定時間
的動作, 確實時間并不重要. 一點要緊記的是: 在一句含有時間詞彙, 例如
\"Yesterday\" 的情況下, 不能運用Present Perfect tense.

例: I have been to beijing
我曾經到過北京.

2..when we talk about how long an existing situation has lasted,even if we don"t give a precise length of time.
E.g they have grown such a lot since we last saw them

2. 當我們談論到一段在事情所經歷的時間, 即使我們沒有提及精確數據,
亦可以用 Present Perfect tense.

E.g they have grown such a lot since we last saw them
例: 自從我們對上一次見過他們之後, 他們已經長高了很多.

3.we use the present perfect to show some connection between what happened in the past with the present moment.

3. 我們可以用Present Perfect tense 來表達一些在過去發生而且與現在有連繫
的事情.