slackening
v. （使）松弛( slacken的现在分词 ); （使某物）放慢; 松懈下来; 变迟缓
词形变化
slackenings
复数
slackenings
释义与例句
n.
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1.
The act by which something slackens; loss of speed, tautness, etc.
v.
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1.
present participle and gerund of slacken