The subduction of oceanic plates has two tectonic actions of subduction accretion and subduction erosion, which ar interconvertible in different time and space.

大洋板块俯冲有俯冲加积和俯冲侵蚀两种不同的构造作用，它可在不同的时间-空间相互转化。

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And the thing is, we got here almost unnoticeably, by the natural accretion of small competitive advantages over time.

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It is time the Court finally contemplate whether the accretion of federal authority through its repeated tweaking of ill-conceived precedents has led to an absurd outcome that is contradictory to the fundamental understanding of the federal government as possessing only limited and enumerated powers.

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For the first time, scientists working at the Hubble Space Telescope were able to directly observe a quasar accretion disc.

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