请写出下列字母缩写的中文意思。CD__________UFO _____________NBA__________P__________BBC______________
Keeping an English diary can help us improve our writing （能力）．
This is the （第八） year for Jim Green to stay in China．
The plane flew at a （高度） of three thousand meters．
It's necessary for us to （等待） in line in public．
The shirt is too small for me．Could you show me （另一） one？
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