单词	casing swivel
释义	casing swivel 套管旋转器
随便看	ear-piercings ear pit earpit earplay ear plug ear-plug earplug earplugged earplugging ear-plugs earplugs ear plugs Ear Pods EarPods ear-polyp ear polyp ear polyp snare ear-popping ear pressure test ear pressure therapy earprint earprints ear probe ear prompter ear protection 古者致治之盛衰，视其学之兴废。古者言之不出，耻躬之不逮也。古者，国之政事，未有不成于学者也。古苔凝紫贴瑶阶，露槿啼红坠江草古苔生迮地，秋竹隐疏花。古诗源古调虽自爱，今人多不弹。古路无行客，寒山独见君古道少人行，秋风动禾黍。古道无人行，秋风动禾黍。直マキ直マキ直ムキ直ル直上直下直中直交直会直伝