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178. plant: n.工厂，车间/v.种植；安插（卧底）
nuclear power plant 核电站
The police planted an undercover agent in the gang.
警方在那个黑帮中安插了一个卧底。
179. within spitting distance of something: 离某物的举例很近
The villa is within spitting distance of the beautiful lake.
别墅就在美丽的湖泊附近。
180. in operation: 运作中
The machine is now in operation.
机器正在运作中。
in effect 生效
The law will be in effect next month.
这项法律下个月就会生效。
nuclear power plant 核电站
The police planted an undercover agent in the gang.
警方在那个黑帮中安插了一个卧底。
179. within spitting distance of something: 离某物的举例很近
The villa is within spitting distance of the beautiful lake.
别墅就在美丽的湖泊附近。
180. in operation: 运作中
The machine is now in operation.
机器正在运作中。
in effect 生效
The law will be in effect next month.
这项法律下个月就会生效。
