在健身教练的明确指导和监督下了解更多关于健身的知识，这是一个非常好的机会。
It's a great opportunity to learn more about fitness through the clear instruction and supervision of a fitness instructor.
当教练拒绝解释而直接用自己的知识来解决问题或者以命令的口气来领导团队时，这就是一个不太好的信号。
It's a bad sign when a coach refuses to explain something, USES technical knowledge to "beat down" an alternative idea, or tries to lead by "command."
那名教练头发浓密，架着一副新闻主播或是知识分子常戴的方框眼镜，皮肤是橄榄色的，身上散发着那种英国教练少有的从容不迫。
The manager has the kind of luxuriant hair, media/intellectual square-rimmed glasses, olive skin and self-control not usually associated with English coaches.
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