listen to music 和listen to the radio为什么前者不加the 而后 He lay in bed with his eyes cl...

listen to music __the radio \u9009\u62e9over\uff0con , by , from\u8fd8\u662f\u90fd\u53ef\u4ee5\u7528\uff1f\u6c42\u8be6\u89e3\uff01

over\uff0con
\u90fd\u53ef\u4ee5
on(over\uff09the
radio\uff1a
\u901a\u8fc7\u65e0\u7ebf\u7535\u5e7f\u64ad
What
exciting
news
I
have
heard
over
the
radio!
\u6211\u5728\u6536\u97f3\u673a\u91cc\u542c\u5230\u7684\u6d88\u606f\u771f\u4ee4\u4eba\u6fc0\u52a8\uff01
Let's
listen
to
the
weather
report
on
the
radio.
\u6211\u4eec\u542c\u4e00\u542c\u6536\u97f3\u673a\u91cc\u7684\u5929\u6c14\u9884\u62a5\u5427\u3002
by
prep.
\u901a\u8fc7\uff1b\u88ab\uff1b\u4f9d\u636e\uff1b\u7ecf\u7531\uff1b\u5728\u9644\u8fd1\uff1b\u5728\u2026\u2026\u4e4b\u524d
set
the
clock
by
the
radio\u6839\u636e\u6536\u97f3\u673a\u8c03\u51c6\u65f6\u949f
from
prep.
\u6765\u81ea\uff0c\u4ece\uff1b\u7531\u4e8e\uff1b\u4eca\u540e
\u4e0d\u80fd\u4e0efrom\u642d\u914d

\u7b54\u6848\uff1aHe lay in bed with his eyes closed,\u3010listening\u3011to the music over the radio.

\u7ffb\u8bd1\uff1b\u4ed6\u95ed\u7740\u773c\u775b\u8eba\u5728\u5e8a\u4e0a\uff0c\u8046\u542c\u7740\u6536\u97f3\u673a\u7684\u97f3\u4e50.

\u89e3\u6790\uff1a\u6b64\u9898\u52a8\u8bcdlistening\u8981\u7528ing\u5f62\u5f0f.

\u539f\u521b\u56de\u7b54\uff0c\u6b22\u8fce\u91c7\u7eb3

\u3010\u4f60\u768410\u5206\u6ee1\u610f\uff0c\u6211\u4eec\u56e2\u961f\u7684\u65e0\u9650\u52a8\u529b\u3011

因为music不是具体的，而是radio就是一个具体的机器。在英文中，在具体或者正式名字的前面又是后（不总是用) 家 "the" 就说明这个东西是具体的。
Listen to the music. 的意思就是：听（这个）音乐吧。
Listen to radio。就是中国英文，不是特别准确。
抱歉我低的汉语水平，我就是一位留学生！希望这片解释能对您有帮助。