The trouble is that...
困难在于...
🧩 词语组成解析
the
[ðə]
art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;
is
[ɪz]
vt.& vi. 是（be的三单形式;
n. 存在;
🗣️ 情景例句
Are there any parties going on tonight?
今晚有聚会吗？
We have an extended warranty available at extra cost.
对于额外价钱我们有较长的保证期限。
Neither, thanks. I think I'll just have a glass of water.
那个都行。我想还是来一杯水吧。