单词	exchange call
释义	exchange call 市内呼叫
随便看	background camera background charge background-check background check background checking background checks background clutter background collimating mark background collimating point background color background color value background colour background colour control character background compiler background Compton scattering background computer background concentration background condensation background condition background conductivity background contamination background control background-corrected background correction background count jgpy jgqb jgqc jgqj jgqm jgqy jgrk jgrl jgsc jgsf 原粮原索动物原纸原罪原职原色原著原薪原虫原蚕