六年级英语翻译The first radios began in the 1920s.At than time the
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六年级英语翻译
The first radios began in the 1920s.At than time the sound was very
poor.So people had to listen on head-phones.
Television began in the 1930s.It was black and white.In the 1960s,the TV programmes began to have colour.
Do you know when computers begin?
帮忙翻译一下!
The first radios began in the 1920s.At than time the sound was very
poor.So people had to listen on head-phones.
Television began in the 1930s.It was black and white.In the 1960s,the TV programmes began to have colour.
Do you know when computers begin?
帮忙翻译一下!
无限电诞生在1920年,然而那时的音质很差.所以人们不得不使用听简电话.
电视的出现在1930年,不过那时是黑白的.只到1960年,电视才有彩色的.
你知道我们什么时候开始用电脑吗?
电视的出现在1930年,不过那时是黑白的.只到1960年,电视才有彩色的.
你知道我们什么时候开始用电脑吗?
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