underdrain

[ˈʌndəˈdreɪn] [ˈʌndərˌdreɪn]

n. 暗渠;阴沟

vt. 开阴沟排水

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    2023-03-27 04:26:27 2023-03-27 04:23:30 2023-03-27 04:29:27 2023-03-27 04:22:03 2023-03-27 04:41:34 2023-03-27 03:19:02 2023-03-27 03:24:23 2023-03-27 02:29:05 2023-03-27 04:11:49 2023-03-27 04:32:34 2023-03-27 04:41:03 2023-03-27 03:26:14 2023-03-27 04:50:32 2023-03-27 04:23:48 2023-03-27 03:24:26 2023-03-27 04:19:39 2023-03-27 03:49:44 2023-03-27 04:16:52 2023-03-27 04:02:10 2023-03-27 02:34:05