Life may be difficult to achieve the goal, but I do not care.
也许一生也难达到目标,但我并不在乎。
It was recognized that an efficient approach with such properties might be difficult to achieve.
同时大家也知道,很难得到这样一个及时有效的方法。
You see the descriptions we give the the word "goal" implies your objective will be difficult to achieve.
你知道,我们赋予“目标”一词的说明意味着你的目标很难完成。
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