The $\text{understudy}$ was substiuted when the leading actor fell ill.

$\text{+}$ understudy (n) : diễn viên đóng thế

$\text{+}$ leading actor (n) : nam diễn viên chính

$\color{turquoise}{\text{#thienbinhvuive}}$
$\color{pink}{\text{#cauhoctotnhaa~}}$