无论何时，当某一方对自己伴侣隐瞒另外一段亲密关系的时候，他们都是不忠诚的。

Whenever a person hides an intimate relationship from his partner he or she is being unfaithful.

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方下巴、大鼻子、小眼睛的男人被认为更具控制力、不够忠诚、育儿能力较差以及性格不够温和。

Men with square jaws, larger noses and smaller eyes were classed as significantly more dominant, less faithful, worse parents and as having less warm personalities.

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主方企业不用任何成本即可激励那些忠诚的顾客，他们乐意参与。

The host is willing to participate because it's a way to reward loyal customers without incurring any costs.

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