助人为快乐之本助人為快樂之本 pleasure from helping others
计算机辅助设计計算機輔助設計 CAD computer-aided design
得道多助，失道寡助, A just cause attracts much support, an unjust one finds little (idiom, from Mencius)
路见不平，拔刀相助路見不平，拔刀相助, 1.lit. to intervene when one sees an injustice (idiom)2.fig. to rush to the rescue3.to play the white knight
电脑辅助设计与绘图電腦輔助設計與繪圖 computer-aided design and drawing
(literary) to aid; to assist
to assist in a candidate's election campaign (Tw)