big dipper

美

英

权威英汉双解

big dipper

1.	（游乐场的）云霄飞车，过山车a small train at an amusement park , which goes very quickly up and down a steep track and around bends

2.	[sing] 北斗七星；大熊星座a group of seven bright stars that can only be seen from the northern half of the world

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