An immutable object's state cannot change after construction. In other words, the constructor is the only way you can mutate the object's state.

一个不可变对象的状态在其构造完成之后就不可改变，换句话说，构造函数是唯一一个您可以改变对象的状态的地方。

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Conservationists say the money was worth spending even if after 23 years of construction it will only take one hour off the length of a journey.

环保人士指出，虽然付出了23年多的时间代价，换回的仅是一个小时的旅程缩短，但这笔钱还是花得物有所值。

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Household central air conditioning service, not only include after service, including sales before the consultation, project design, installation and construction.

家用中央空调的服务，不仅包括售后服务，还包括销售前的咨询、方案设计、安装施工。

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Construction can start only after the agency approves the plan and the builder has the permits for water, sewage and electricity connections.

WSJ: India Police Arrests Nine in Building Collapse

Construction can start only after the agency approved the plan and the builder has the permits for water, sewage and electricity connections.

WSJ: Death Toll in Mumbai Building Collapse Hits 74

Construction was halted, but only after 11 months.

ECONOMIST: A big step backward for a still-uncertain democracy