Thermoconvection
热对流
🗣️ 情景例句
Where's the bag with the chicken salad sandwiches?
放鸡肉沙拉三明治的袋子在哪？
Short accounts make long friends.
帐算清，交情深。
Most of the earth's surface is covered by water.
大部分的地球表面被水覆盖着。