他们一再探问此事: they inquired about the matter time and again. inquire after
无线电: radio; wireless◇无线电爱好者 radio amateur; amateur radio; 无线电报警 radio warning; 无线电报务员 radiop; 无线电测向 radio direction finding; direction measurement by radio wave; 无线电测向器 radiogonioscope; directi
