◎◎◎ boy ⪢⪢
A _____ is a male child.
http://qindex.info/i.php?x=22341

○○○ third person ⪢⪢
He explains that English does not have a third person singular pronoun that does not identify as male or female. Zimmer says that more and more "they" is being used to replace the traditional phrase, "he or she".
http://qindex.info/i.php?x=9415

○○○ actor ⪢⪢
The role of king was given to a male _____ . The role of queen was given to a female _____ .
http://qindex.info/i.php?x=21831

○○○ metabolism ⪢⪢
This male booted racket-tailed hummingbird lives on the brink of starvation. Just 2 hours without nectar and he could die. Humming birds have the fastest metabolisms on Earth. Some need to visit 2 thousand flowers a day just to keep going.
http://qindex.info/i.php?x=15340

○○○ other than ⪢⪢
An animal that can and does defeat an adult male polar bear is, well, none other than another polar bear but bigger and stronger.
http://qindex.info/i.php?x=19779

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