急問present perfect tense 的問題

首先要講
進入某航空管制區的領空跟抵達某個地方到地是兩回事，所以你寫的英文句跟你中文講的意思是完全兩件事，就算時態用啱也沒有用，仍是錯。

8:45:00進入領空在8:45:01講是
I have entered Macau airspace. 或 I have entered Macau air traffic control zone.

講完寫句便講你的英文句

I have arrived in Macau.
是(在地面)入境澳門。

題外:

air traffic control zone 不是這麼說

terminal control area (TCA) ~ 北美
terminal manoeuvring area (TMA) ~ 歐洲
- an aviation term to describe a designated area of controlled airspace surrounding a MAJOR airport where there is a high volume of traffic

controlled airspace 是香港 Air Control Centre 管理

2014-12-20 10:39:20 補充：
各位:
請教這兩句有無問題

"I have arrived in Macau since 8:45 am
By (08:45:01-08:45:00=00:01), I have already arrived in Macau."

初學者與我, 都是看到一頭霧水, 難怪發問者問完再問
多年前小學老師教我, 像 Ling 寫一樣
I arrived in Macau at 8:45 am.

Benny,
你與其不停問這句有無問題，那句有無問題，不如了解下 present perfect tense 的用法更實際

I have arrived in Macau - no time indication so present perfect tense is good
I arrived in Macau at 8:45am - time indicated so past time is used

It denotes present result of past action:-
(1) By (08:45:01- 08:45:00=00:01), I have just arrived in Macau.

(2) By (08:45:01-08:45:00=00:01), I have already arrived in Macau.

"Just" used to mean the immediate past while "already" indicates completion has no problem.

2014-12-20 08:57:54 補充：
Note the words :-"since" and "for" are used.eg:-I have arrived in Macau since 8:45 am (point of time in the past)& have had immediate speaking time for 1 sec(=08:45;01 am) (refer to an immediate period of time)