single-minded

a. 诚实的,诚心的,专心的

sin, since, sincere, sincerely, sincerity, sine, sine die, sine qua non, sinecure, sinew, sinewy, sinful, sinfully, sing, Singapore, singe, singer, singing, single, single out, singlet, singsong, singular, singularity, singularly, sinister, sink, sink in, sinker, sinkhole, sinking, sinking fund, sinlessness, sinner, Sino- (also sino-), sinologist, sinology, sinuosity, sinuous, sinus,