ACTCn.文化和技术合作机构actn.行为；行动；法案；(戏剧、歌剧等的)一幕；假装v.行动；举止；假装；表演；扮演；充当；有效果actlon choice行为选择act n/v.行动;act. val.abbr.=actual value 实际价值act one's age举止与年龄相称act as though表现得似乎actro-atoms天体原子Act of Nature天灾Actias selene柳蚕actuating arm驱动杆actuating rod作用杆,作动杆,操纵杆