When someone asked him why,he replied, "This is an AM radio."
Notes:
1. I knew a guy who played his radio only in the morning.
我認(rèn)識(shí)一個(gè)人,他只在早上收聽廣播。
2. When someone asked him why,he replied, "This is an AM radio."
當(dāng)有人問他為什么時(shí),他回答:“(我的)這一臺(tái)是AM(調(diào)幅)收音機(jī)。
"AM"表示“調(diào)幅”(amplitude modulation),也可表示“上午的”,通常與時(shí)間連用,不需再加o'clok,也可以用"a.m."表示,如:at 9 a.m.(在早上九點(diǎn))。廣播的收聽方式有調(diào)幅 (AM)和調(diào)頻(FM/frequency modulation)兩種。
那個(gè)擁有AM收音機(jī)的人認(rèn)為AM是早上的意思,所以只能在早上收聽。
amplitude [?æmpl?tju:d] n.(物理)振幅
modulaiion [?m?dj?'le??n] n.(電子)電波頻率的調(diào)變;調(diào)幅
frequency [?fri:kw?nsi] n.(物理)頻率