měi cì / tǎo lùn / fāng àn / zǒng yǒu rén / chàng hēi liǎn / tí chū / gè zhǒng / fǎn duì / yì jiàn

每次讨论方案，总有人唱黑脸，提出各种反对意见。

Every time a proposal is discussed, someone plays the strict role and raises various objections.