Anel阿内尔anart.（用在元音音素前）一anelectrotonic zone[医] 阳极紧张区, 阳极区an adaptable person适应力强的人an instructive film科学普及片An act of mixing.混合混和的行为an application form申请单an athletic meeting运动会an inscribed circle内接[切]圆an overloaded truck一辆超载的卡车an olive complexion浅褐色的面容an electrified body带电体