单词	royal tern
释义	royal tern noun : a large tern (Thalasseus maximus) of the southern U.S. and farther southward that is white with a black crown and crest and pearl-gray mantle Word History First Known Use 1858, in the meaning defined above
随便看	rigged (out) rigged (up) rigged out rigged up rigger rigger's screw riggers rigging rigging (out) rigging (up) rigging loft rigging out rigging screw rigging up riggings riggish riggot riggs Righi-Leduc effect right right along right and left right angle right as rain right ascension

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