动词短语
中文翻译：修复间隙
同义词：
['fill gap', 'mend gap']
例句：
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1. The car's engine has a big gap in the middle of the cylinder.
这辆车的发动机中间有一个大的空隙。
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2. The gap between the two countries is widening due to economic differences.
由于经济差异，两国之间的差距正在扩大。
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3. The gap between the old and new technologies was filled with research and development.
新旧技术之间的差距被研究和开发所填补。