n.an actor able to replace a regular performer when required
同义词：standby
v.be an understudy or alternate for a role
同义词：alternate
Understudies
Understudies
Understudies
Understudies of DNA and RNA
Carry on Understudies
"Understudies": Miming the Human
Understudies : theatre and sexual politics
Carry On, Understudies: Theatre and Sexual Politics
Not just understudies: The dynamics of short‐term leadership
ATTENDANCE CHECKING FRAMEWORK FOR ONLINE UNDERSTUDIES IN CLASSROOM UTILIZING RADIO FREQUENCY IDENTIFICATION TECHNOLOGY
