1. 舒适：cosine 余弦 | cosiness 舒适 | cosmetic surgery 整容手术
2. 舒适, 安逸：cosine || 余弦 | cosiness || 舒适, 安逸 | cosingular complexes || 共奇线丛系
1. Icy blasts of winter cold can chill the libido, but it's the potential for indoor cosiness afterwards that makes it all worth it.