形容词
1. Expert opinions are favorable to the project.
专家的意见是赞成这一工程的。
2. At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的特别游泳池里，孩子甚至在会走路之前就能熟练地在水下屏住呼吸。
3. expert是什么意思
3. He became an expert language teacher.
他成了一个有经验的语言教师。
名词
1. She is an expert in training animals.
她是驯兽专家。