...And then a well-rememberedvoice sounded in the radio earphones in his helmet... 
Various 「Astounding Stories, February, 1931」
...His shriek of terror rasped in their earphones...
Various 「Astounding Stories, February, 1931」
...He panted with fright, and in their earphones his friends could hearhis every tortured exhalation...
Various 「Astounding Stories, February, 1931」
...A shout from the men roared in the commander's earphones...
Various 「Astounding Stories, February, 1931」
...A block of wood was placed upon the diaphragm of an ordinarytelephone transmitter, which in turn was connected through batteriesand amplifiers to a pair of earphones...
Various 「Astounding Stories, June, 1931」
ランダム例文：
plow chandelier chatter
便利！手書き漢字入力検索