毫无疑问

It's no doubt that shortsightedness of youth in our country is a much serious problem.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It is no doubt that shortsightedness is a severe problem among the youth in our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It's no doubt that shortsightedness becomes a severe problem in China's youth.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

There is no doubt that shortsightedness is a serious promblem among the young people in my country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

There is no doubt that shortsightedness is a very serious problem among the Chinese youths.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Without doubt, shortsightedness is a serious problem among youngsters in China.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Shortsightedness is, undoubtedly, a serious problem for youngsters in our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Without doubting, shortsightedness is a serious quesion in the youth of China.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Without doult, shortsightedness is a severe problem amongst our country's youth.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Undoubtly, shortsightedness is a serious problem among young people.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。