1、有些购物商场的地下停车场是如此的庞大复杂，以至大厦主管只好用不同颜色的地区来标示和提示那些司机他们的车子停在哪里。
Some underground parking lots under the malls are so large that managements have to use different color zones to remind car drivers to find mark[mark可去掉] where their cars are parked.

2、我的朋友Joey倒是一点都不在乎那些不同颜色的区域标识和车位编号。
My friend Joey is not in the least concerned with that different color zones and cars' [parking space，车位] number.

3、并不是他拥有超强的记忆能力，而是他只记从哪部电梯进入商场，然后记住从电梯到停车处的标识就行了。
It was not that he has powerful memory ability.He just remembered from[去掉这里的from] which lift he took to get into the mall and the mark from the lift to the parking lot.

4、有一次无论那些色彩区域标示得如何仔细，Joey都无法找到自己的车。
Once however cautiously those zone marks, Joey did not have no[any] idea to find his car. [“双重否定”就是“肯定”的意思啦，建议把no改成any~]

5、因为他之前乘搭的电梯停用了，不过他相信他迟早会找到自己的车的
As the lift he took before was out of service, but he believe[believes] that sooner or later he will find his car.