艰苦的劳动非常有益。

Hard work is very beneficial.

活动：艰苦的劳动。

Activity: Hard Labor.

清除大麦中的麸皮是一项艰苦的劳动.

It is a hard labor to purge the barley from the bran.

众所周知，幸福存在于艰苦的劳动之中。

It is well-known that happiness lies in hard work.

我也喜欢花园, 但是我不喜欢艰苦的劳动.

I like gardens too, but I do not like hard work.

这些还在上学阶段的青少年被迫在艰苦的环境下进行非常辛苦的劳动。

They were forced to swap school for backbreaking labor in desperate conditions.

我会永远记住你的善良和艰苦的劳动，这真是我的荣幸能作为你的妹妹，我会好好珍惜你对我的善意无论我走到哪里。

I will always remember your kindness and painstaking labor. Besides, It is really an honor for me to be your sister and I will cherish the goodwill you showed to me wherever I go.