đôi, gấp đôi
consisting of two equal, identical, or corresponding parts or elements
gấp đôi, hai lần
twice the size, amount, or strength of something else
gấp đôi, tăng gấp đôi
to become twice as much or as many
twice the amount or size
gấp đôi, cú đúp
a thing that is twice as much as usual, or twice its usual size or strength