He is said to have insisted on the insertion of personal bugbears into the grammar curriculum, notably the subjunctive form, " If I were" .

据说，他坚持在语法课程中加入一些难，尤其虚拟语气“If I were”。

But deciding on what ship to do, that's a challenging aspect.

但难在于敲定船的样式。

What makes it so hard is that you reverse direction on takeoff.

种跳的难在于你起跳时要调转方向。

This is one of the trickier things to design for.

设计的难之一。

The hardest thing about creating a premium game is marketing.

打造收费游戏的最大难在于市场营销。

So I would say there are two difficulties here.

我想说里有两个难。

The difficult thing about the pronunciation of this word is the two consonant sounds.

关于个单词的发音难在于两个辅音发音。

This is what makes this question type so difficult.

个题型的难所在。

All the thoughts that occupy your brain right when you wake up, many of us spend the first few minutes of the day worrying, yeah, you're anxious about the chores you need to do anxious about responsibilities and expectations.

你醒来，各种想法占据了大脑，许多人在刚醒来的几分钟都会对需要负责、备受期待的工作难感到焦虑。

Harder. Let's get it. One. Slip. Three. Four. Ah, oh!

再难。让我们接住它。一个。滑动。三。四。啊，哦！

The real difficulty is in sticking to this list.

真正难在于坚持。

So the trouble with gravitational waves is that they're very weak; they're preposterously weak.

研究引力波的难在于它们太微弱了； 微弱得不合常理。

What's hard is getting people to understand why the ocean matters to them.

难在于如何让人们理解海洋对人类的重要性。

There are, of course, knots to be worked out.

然，其中有些难需要解决。

Plus, if they have been researching possible sightings of the creature, it's something they've been doing for a while and are still doing now, making it present perfect progressive.

再难，如果他们一直在研究生物的目击证据，表明他们已经做了一阵并且仍在做的事情，" have been researching" 现在完成进行时。

And I would say the main difficulty of IELTS listening is the lack of time, so I'm gonna talk about how you can manage your time more effectively during this test in order to answer more questions.

我想说的，雅思听力的主要难在于时间不够，所以我要谈谈如何在考试中更有效地管理你的时间，以便回答更多的问题。

But when it comes down to the songbirds, that's where the real difficulty lay, because the calls that they're giving at night are not, in many cases, not frequently given during the day.

但对于研究鸣禽来说才真正的难，因为在很多情况下，它们夜间发出的声音不常出现在白天。

It recognized that it had to grasp the difficulties of communicating the value of its products to differing and diverse markets through periods of great political and social change.

公司认识到必须把握难，即使在政治和社会变革时期，也必须能够把自己产品的价值在各不相同、复杂多样的市场内说明清楚。

The pressure is greater when a guest already is familiar with what this thing should be, and the challenge is to deliver on that belief.

游客已经熟悉个东西应该什么样子时，压力更大，难在于实现他们的想象。

While the ingredients themselves are not expensive, the challenge lies in the meticulous handling of the fish, which must be killed and marinated fresh to maintain its delicate qualities.

虽然原料本身并不昂贵，但难在于对鱼的精心处理，鱼必须新鲜宰杀和腌制，以保持其细腻的品质。