两边挖好小坑,一边挖好长沟。拿一根足以穿过的硬水管(就是你要铺的),一头接上水管,打开水,往前捅就成了。
两边挖好小坑,一边挖好长沟。拿一根足以穿过的硬水管(就是你要铺的),一头接上水管,打开水,往前捅就成了。
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