名词
中文翻译：坑头
同义词：
['pit', 'hole', 'pitfall例句：1. The car was found at the bottom of the pithead.（这辆车被发现在坑口底部。）2. The workers were digging at the pithead when they heard a noise.（工人们在挖坑口时听到了噪音。）']
例句：
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1. The car was found at the bottom of the pithead.
这辆车被发现在坑口底部。
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2. The workers were digging at the pithead when they heard a noise.
工人们在挖坑口时听到了噪音。
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3.The engineer carefully inspected the pithead before starting the excavation.
工程师在开始挖掘之前仔细检查了坑口。