| 单词 | sump |
| 释义 | Word Frequency sump(sʌmp) noun 1. a receptacle, such as the lower part of the crankcase of an internal-combustion engine, into which liquids, esp lubricants, can drain to form a reservoir 2. another name for cesspool 3. mining a. a depression at the bottom of a shaft where water collects before it is pumped away b. the front portion of a shaft or tunnel, ahead of the main bore 4. British dialect a muddy pool or swamp Word origin C17: from Middle Dutch somp marsh; see swamp |
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