coach
单词辨析：
较正式用词，多指进行学校教育，通常用被动语态。
My job is to educate the students.
我的工作就是教育学生。
He was educated at the local university.
他在当地上的大学。
指对体育运动、工作、技能等进行培训或进行考前辅导。
He has coached hundreds of young dancers.
他培养了数百名青年舞蹈演员。
I will coach him for Chinese examinations.
我将辅导他准备汉语考试。
普通用词，指教授某人具体知识、技能、道理等。
I taught my son to ride a bicycle.
我教儿子骑自行车。
He teaches both physics and chemistry.
他教物理和化学两门课。
指培训人或动物的某种技能或进行体育训练。
We'll train dogs to sniff out drugs.
我们将训练狗嗅出毒品。
Nancy trained as a singer.
南希受过歌手训练。
She is training for the Olympics.
她正在接受训练，以备战奥运会。
普通用词，可指任何以教书为职业的人。
The teacher wrote on the blackboard with a piece of chalk.
老师用粉笔在黑板上写字。
A teacher should entertain as well as teach.
教师不仅要教书，也要激发学生的兴趣。
Many middle schools are crying out for good English teachers.
许多中学迫切需要优秀的英语教师。
特指给个人授课、辅导以帮助其应对某种考试的私人教师。
She is my maths coach.
她是我的数学应试辅导教师。
He needs a drama coach.
他需要一位戏剧辅导老师。
指体育运动或技艺的指导人，或美国大学中的讲师，其职位低于助理教授（assistant professor）。
Our driving instructor is very strict.
我们的驾驶教练要求非常严格。
Her husband is an archery instructor.
她丈夫是射箭教练。
The college promoted him from instructor to full professor.
学院把他从讲师提升为正教授。
指教授或训练他人运动或工作技能的人，也可指驯兽师。
He is a successful trainer in the tennis field.
他是网球领域成功的教练。
She's been working as a personal trainer for three years.
她当私人教练有3年了。
Why do you want to be a trainer?
你为什么想做培训师呢?
He is an animal trainer for the circus.
他是马戏团的驯兽师。
指给单个学生辅导或开小班授课的私人教师，也指英国大学里的助教、导师。
Maybe you should get an English tutor.
也许你该去找个英语家教。
There was a tutor to teach the children while they were in the hospital.
在孩子们住院期间，有个私人教师给他们上课。
My tutor is a scholar of profound learning.
我的导师是一位学养深厚的学者。
相关例句：
The coach tried to get his charges motivated.
教练试图激发队员的积极性。
The coach departs Potsdam in the morning.
长途客车早上从波茨坦开出。
Until the rail links are in operation, passengers can only travel through the tunnel by coach.
在铁路连线开通之前，乘客只能乘坐长途客车穿越隧道。
He's more than a coach, he's a friend.
他不只是教练，更是朋友。
He travelled a great deal by coach.
他坐马车作过不少旅行。
Between plays the coach was talking to the offense in the huddle.
中场时，这位教练对围拢一圈的进攻队员进行战术指导。