伸展的拖延的延长的protract: vt. 1.拖长,延长。 2.(用比例尺半圆规)画(线) ...a protracted dysentery: 久痢3irradiation, protracted: 微量长期照射long protracted: 逗留的on protracted war: 论持久战下载手机词典可随时随地查词查翻译