Differences between 凉 and 冷，冻 and 冰 I was wondering whether anyone could tell me if these words are completely interchangable all situations. If not, how am I to discern which to use?
凉 (liáng) s.v. cool, chilly. 不想吃凉米饭. (liàng) v. make cool. 天气凉了. Opposite: 温

冷 (lěng) s.v. cold; 天气很冷. Opposite: 热

冻 (dòng) v. freeze; feel frosen. 湖泊冻成冰. Opposite: 融

冰 (bīng) n. ice. v. put on ice; feel cold. 湖泊冻成冰. Opposite: 汽