Heating system
[化] 供暖系统
🧩 词语组成解析
heating
['hitɪŋ]
n. 暖气装置[设备];加热，采暖;
v. （使）热( heat的现在分词);使激动;激发;使兴奋;
adj. 加热的;供热的;
heat热+ing形容词后缀 → 加热的
🗣️ 情景例句
It's a deal!
就这么约定！
Our packing charge includes $1 for the drum, which sum will be credited on return.
包装费中有1美元是包装桶的费用，此费用在桶还给我们时可退回。
You must keep it a secret. You mustn't tell anybody else.
你必须保密，谁都不能讲。