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to fold up
[phrase form: fold]
01
折叠
to bend something to make it smaller or more compact
02
折叠
to become smaller or more compact by bending or collapsing
例子
He carefully folded up the letter before placing it in the envelope.
She instructed the students to fold up their notebooks and put them in their bags.
After the picnic, it's time to fold up the picnic table and chairs.
The foldable stroller folds up with one hand and fits easily into the trunk of a car.
If you're not careful, the umbrella can suddenly fold up in the wind.
