1-contradictory 矛盾的

Unsure of the word, the recipient found two contradictory meanings in his dictionary.

2-Anglophone 讲英语的人

3-slang 俚语

4-specific to 独有的，只与……相关的

Anglophones, on the other hand, often speak too fast for others to follow, and use jokes, slang and references specific to their own culture.

5-up the game 提升自己

With non-native English speakers in the majority worldwide, it's Anglophones who may need to up their game.

6-bugbear 令人困扰（或担忧）的事

7-baffle 使……困惑

One bugbear is abbreviations. In emails, they use baffling abbreviations such as 'OOO' instead of simply saying that they will be out of the office.

8-understatement 保守的陈述，轻描淡写

9-face value 面额；字面意思

When a Brit reacts to a proposal by saying "That's interesting.", a fellow Brit might recognise this as understatement for, "That's rubbish." But other nationalities would take the word "interesting " on face value.