the drops of water that appear on cold windows or other surfaces , as a result of hot air or steam becoming cool
发音
例句
1. A cloud is a condensation of water vapour in the atmosphere. 云是由大气中的水蒸气凝结成的。 2. He used his sleeve to wipe the condensation off the glass. 他用袖子擦掉玻璃上凝结的水珠。