hé / chàng / tuán / xū / yào / yì / míng / nán / dī / yīn / lái / jiā / qiáng / dī / shēng / bù / de / xiào / guǒ合唱团需要一名男低音来加强低声部的效果。The choir needs a bass singer to strengthen the effect of the lower vocal part.