The average speed of a large commercial jet airliner is about 50
所有跟帖:
• jet airliner is about 500 mph -wxcsci- ♂ (0 bytes) () 09/23/2011 postreply 20:44:28
• 無論如何,解鈴還需係鈴人。 -wxcsci- ♂ (0 bytes) () 09/23/2011 postreply 21:07:56
• jet airliner is about 500 mph -wxcsci- ♂ (0 bytes) () 09/23/2011 postreply 20:44:28
• 無論如何,解鈴還需係鈴人。 -wxcsci- ♂ (0 bytes) () 09/23/2011 postreply 21:07:56
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