At times it seems too difficult and too far out of reach.

有时它似乎太困难，太遥不可及。

youdao

Although following this plan will be difficult at times, the idea is not to be masochistic.

尽管按照这个计划，你会遇到些困难，但这并非自虐。

youdao

Sod can grow at times and in places where growing grass from seed is difficult.

VOA: special.2009.07.07

Rachel Loder, 16, who was a sophomore at the time of the Chardon shootings, received such a security blanket and cried and embraced it at difficult times during the past year, her father George Loder said.

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However, he is adept at surviving difficult times.

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Earlier on in the debate, Mr Van Rompuy said the meeting was "at times difficult, but fruitful".

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