单词	tip institution
释义	tip institution 小费
随便看	universal gear measuring machine universal gear oil universal gear shaving machine universal gear tester universal gear testing machine universal general demand universal generalization universal gene targeting vector universal genius universal geodetic datum universal geometrical micrometer universal global symbol universal glue universal goniometer universal good universal grammar universal grammars universal grammer universal graph universal graphic record universal gravitaion universal gravitation universal gravitational constant universal gravitational constants universal gravitational law