这个网球锦标赛对业余选手和职业选手都开放。

This tennis tournament is open to both ___amateurs and professionals.

业余选手在看到职业选手使用某设备成功后，可能会购买它。

An ___amateur might buy equipment after seeing a professional succeed with it.

作为一名业余摄影师，她喜欢在周末拍照。

As an ___amateur photographer, she enjoys taking pictures on weekends.