请写出下列字母缩写的中文意思。CD__________UFO _____________NBA__________P__________BBC______________
On weekdays，we must school before 7：30 in the morning．（到达）
The students often ask Mr Li for some advice on improving ．（英语口语）
Smoking your health， please give it up．（对…有害）
不要忘了提醒我日期和地点（完成译句）
Don't remind me of the date and place．
The is a bridge of cultures between China and many other countries．（丝绸之路）
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