相关Clock550的作文精选

高一英语作文:A Water Clock550字

Thewaterclockhasthreetheleftisatankholdingtankhasanarrowopeningthroughwhichwaterdripsintoasecondcontainer,alsoadethesecondtankisafloatingobject,totheendofwhichisattachedalongpolewithantherightisacylin...