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#He couldt get on top of his work
In plete control or with plete awereness of something often due to being diligent fully informed，and/or up-to-date.
#A tiny meteoroid struck newly delopyed James Webb
Space
Telescope in
May，knocking one of its gold-plated mirrors out of
alignment.
knowing 的逻辑主语是a tiny meteoroid
its 指代 James webb space telescopes
out of its gold-plated mirrors
out of alignment 错位
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