单词	币金
释义	币金 Bì Jīncoin gold
随便看	Observation to foreign community sports observation tour observation window observation windowsight glass observation with bathy thermograph observation works observation year observative observatoire observator observation tower observation tower, radio tower, belfry observation towers observation train observation trial observation tube observation tube clamping screw observation tube fixing screw observation under the microscope observation unit observation value Observation values observation variable observation vector observation vessel