...来的目标，并且停在那里，这是非常深的专注，这种深的专注力很难培养；但是你可以很容易培养“近行定”（access concentration），近行定指较接近，你不在定中，但是非常接近。像你们来到这里一样，你不在大厅里，而是在门附近。
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Some scholars argue that the concentration of water within the urban core of these sites provided a centralized source of political authority for Maya elites based largely on controlled water access.
一些学者认为，集中在这些地点的城市核心区的水资源为玛雅精英提供了一个集中的政治权力来源，而这些权力主要是基于对水资源的控制。
In a healthy term infant who has access to good postnatal nutrition, the benefits of delayed cord clamping are likely limited to a modest increase in hemoglobin concentration.
足月健康儿，产后营养充足的条件下，晚扎脐带似乎只增加血红蛋白的浓度。
It does no harm to human body under the prescribed concentration that is applicable in places where people would access or stay.
在规定的灭火浓度下对人体完全无害，可以在有人停留的场所安全地使用；
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