Only gravity and a phenomenon called the weak nuclear force, which governs some types of radioactive decay, can bind them—hence the term “weakly interacting”.

只有重力和一种可以支配某些放射性衰变的弱核力能够使其聚集凝固，“弱反应”这一术语由此得名。

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It is defined by gravity because that is the only way that it interacts it has no electric charge, and does not feel the strong and weak forces that bind atomic nuclei together.

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Unless you show them the same Twitter-frequent love they have for their pet brand, your weak ties will not bind them.

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But they felt in a bind, because critics had derided the initial July stress tests as too weak.

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