词：problematic
英英释义：involving problems and difficult to deal with
例句：Driving in Beijing can be quite problematic.
1）翻译下面的句子：
对中国学生来说，英语中的双元音（diphthong）很难掌握。
For Chinese students, to master diphthongs is problematic.
造句：
背景：在中国禁止有性别成见的广告还是困难重重。大部分的中国人依然对一些性别偏见习以为常，比如女人的驾驶技术很差和男人的数学更好。
To ban adverts with sexist stereotypes in China is problematic. Most Chinese still take some stereotypical views like women’s poor driving skill and Men’s better mathematic ability for granted.
