n.an actor able to replace a regular performer when required

同義詞：standby

v.be an understudy or alternate for a role

同義詞：alternate

Understudied populations with hepatitis C
Help-seeking: An understudied problem-solving skill in children ☆
Heterosexual Anal Intercourse: An Understudied, High-Risk Sexual Behavior
Type 2 diabetes mellitus and cognition: an understudied issue in women's health.
Overuse of health care services in the United States: an understudied problem
Intracranial branch atheromatous disease: a neglected, understudied, and underused concept.
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The thermal and boron-catalysed direct amide formation reactions: mechanistically understudied yet important processes.
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