| 单词 | engine cooling system |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔defect〕All the company's aircraft have been grounded, after a defect in the engine cooling system was discovered.自从发现发动机冷却系统有缺陷之后，这家公司所有的飞机都已经停飞了。剑桥高阶 |
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