Olson also studies and observes the behaviour of babies.
奥尔森还研究并观察婴儿的行为。
《柯林斯英汉双解大词典》
2
Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health.