When it's not working, my serve, it's very difficult to beat the top players.

当发球处理得不好的时候，很难击败顶尖选手。

youdao

They are growing and are more experienced. The coach is very good so they will be difficult to beat.

他们在成长，更有经验了。教练很不错，所以他们是很难击败的。

youdao

But it will not be easy because every time we play Fulham, even at home, it is very difficult to beat them.

但比赛不会很容易，因为我们每次与富勒姆比赛，即使在主场，击败他们都是很困难的。

youdao

An extremely low body temperature can cause the heart to beat so slowly that a pulse may be difficult to find.

VOA: special.2009.12.30

And Wales legend Gareth Edwards says Wales are becoming even more difficult to beat.

BBC: Wales can make history - Guscott

And Schumacher said earlier in the weekend that he expected the Renaults to be difficult to beat in the race.

BBC: SPORT | Motorsport | Formula One | Bahrain Grand Prix as it happened

The Scotsman has moulded a side that is difficult to beat and, in McFadden and Bowyer, has players capable of unlocking tight defences.

BBC: Birmingham 1-0 Fulham