One had to listen hard to catch the words of the president's speech as the delegates booed and hissed.

由于代表们发嘘声、喝倒彩，得费劲儿地听才能听清总统的演讲。

《柯林斯英汉双解大词典》

Again the point is to listen hard while keeping the pen moving.

再次强调，重点是在保持笔移动的同时，要认真倾听。

youdao

You had to listen hard to hear the old man breathe.

你要仔细听才能听见老人的呼吸声。

youdao

However, listen hard and you'll hear that they are not ruling out ending the link between benefit rises and inflation or other cuts in the benefit bill.

BBC: Nick Clegg �C Stand by for more cuts

But listen hard, and they echo local life.

ECONOMIST: Could the famous Black Sea port sparkle again?

But it was hard to listen to Mr Clinton's answer without feeling some sympathy.

ECONOMIST: Bill Clinton��s unexplained idea