单词	an obtuse angle
释义	an obtuse angle n. 钝角
随便看	union purchase system union rate union reducer union relationship union representative union representatived union representatives union republic union resistance curves union ring union rule union rule of functional dependencies unions union scale union screw union-screw union screw coupling union-screw coupling Union Seamount union security union sequence union serge union set union-set union-sets 丁年事丁未之夏丁未正月二日丁香枝上七八个星天外七十老翁何所求七层摩苍穹七张机七星在北户七月七日长生殿くみ合わせくみ合わせるくみ天井くみ干すくみ手くみ打ちくみ換えるくみ敷くくみ替えるくみ杯