对折在英语里怎么说？

fold
Pack up this angle
Repeat the above actions twice

fold [fəuld]
v.折叠，交叠 n.褶痕，褶缝，折叠的部分

double up
vt. 加把劲(双杀中第二个接杀)
例句:
The carpet is too thick to double up.
这地毯太厚没法折叠。
The rug won't double up.
这条地毯卷不起来。
Come on, comrades. Double up.
来，同志们，赶快！

fold in two 对折
Pack up this angle 把这个角往上折
Repeat these two movements above twice

fold in half

fold up

do the above actions twice

对折、把这个角向上折、重复以上动作两次
Fold, fold up this angle, repeat the above two actions