One air conditioner, one telephone and three chairs, how much is the total?
一台空调，一个德律风和三把椅子，总共多少钱？
Sir, this is the standard type of air-conditioner. Which one do you prefer?
先生，这款正是标准类型的空调。你喜欢哪一种？ ？
Sir, this is the standard type of air-conditioner. Which one do you prefer?
先生，这款正是标准类型的空调。你喜欢哪一种？
One is the control method of air conditioner system .
第一是研究铁路空调客车通风系统的控制方法。
Throwing one cigarette end could destroy the cool-condensation pipe of air-conditioner downstairs;
因为楼上抛下的一个烟头，导致楼下空调冷凝水管被烧坏；
Throwing one cigarette end could destroy the cool-condensation pipe of air-conditioner downstairs;
因为楼上抛下的一个烟头，导致楼下空调冷凝水管被烧坏；
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