建筑进程缓慢是因为劳动力不足。
稻田免耕栽培模式是克服农村劳动力不足、实现降本增收的有效途径。
The models of rice field without plough were effective ways to overcome the shortage of rural laborers and to save costs and increase income.
食品和能源出口量巨大的北达科他州正在通过引进人口解决劳动力不足的问题。
North Dakota, which exports so much food and energy, is dealing with its labor shortage by importing people.
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