lowering
n. （缓慢地）放下，降下；减少，降低；降下人或物
adj. 乌云密布的，阴沉的；黑暗的，昏暗的；使低劣的；减少体力的
例句
She never cheapened herself by lowering her standards.
她从不降低标准来贬低自己。
《牛津词典》
The Japanese are expert at lowering manufacturing costs.
日本人在降低生产成本方面很在行。
《柯林斯英汉双解大词典》
The lowering of trade barriers has led to a free-for-all among exporters.
降低贸易壁垒导致出口商各自为政。
