folding

• 指物体可以折叠，以便收拢成更紧凑的形态，便于存放或携带。

Describes an object that is designed to be folded into a more compact form for storage or portability.

1. FoldableA2formal

   Designed to be bent, collapsed, or moved into a more compact shape for convenient storage or transport.

   折叠式

   • He bought a folding chair for the camping trip.
   • A folding table is easy to store in a small apartment.
   • The folding bicycle fits perfectly in the trunk of a car.
   • She used a folding knife while hiking.

   同义词collapsiblefold upfoldablefoldaway

   反义词fixednoncollapsiblerigidsolidstiff

• 指折叠、弯曲或收拢某物的过程或动作，如蛋白质折叠成三维结构、地质作用导致岩层弯曲，或一般的折叠行为。

A noun referring to the process or act of bending something, such as a protein molecule assuming its three-dimensional shape, a geological process causing bends in rock strata, or the general act of folding.

1. Protein foldingC1formalscientific

   The process by which a protein chain folds into its characteristic three-dimensional structure, which is essential for its biological function.

   蛋白质折叠

   • Protein folding is critical for enzyme activity.
   • Misfolding of proteins can lead to diseases such as Alzheimer's.
   • Researchers study folding using computational models.
   • The chaperone proteins assist in proper folding.

   反义词unfolding

2. Folding (geology)C1formalscientific

   A geological process that bends rock layers, typically due to tectonic forces, resulting in structures such as anticlines and synclines.

   褶皱（地质学）

   • Folding creates mountains and valleys.
   • The rock strata show evidence of ancient folding.
   • Geologists map folding patterns to understand tectonic history.
   • This region's folding occurred during the Alpine orogeny.

   同义词flexurefoldplication

3. General foldingA2informal

   The act of bending something, such as paper or cloth, so that one part lies over another.

   折叠

   • The folding of the letter made it fit in the envelope.
   • He is skilled at the folding of origami paper.
   • The folding of clothes takes less time with practice.
   • She taught the children the proper folding of napkins.

   同义词doublingfoldpleatingplication

• 动词，表示把某物（尤其是纸或布）的一部分折到另一部分上面，或把东西合拢、收拢起来。

A verb used to indicate the act of bending something, especially paper or fabric, so that one part lies on top of another, or to close or collapse.

1. A2formal

   To bend something, especially paper or cloth, so that one part lies on top of another part.

   折叠

   • She folded the letter and put it in an envelope.
   • He folded the laundry and put it away.
   • Fold the paper in half before cutting.

   同义词bendcreasedoublefold uppleattuckturn over

2. B1formal

   To close or shut something, such as a chair, table, or umbrella, by bending or moving its parts together.

   折叠

   • He folded the deck chair and stored it in the shed.
   • She folded the stroller before putting it in the car.
   • Fold the umbrella when you enter the building.

   同义词closecollapsefold upfurlshut

   反义词extendopenspreadunfold

3. Business failureB2informal

   To close a business because it is not successful.

   倒闭

   • The restaurant folded after only six months.
   • Many small businesses folded during the recession.
   • The company folded due to lack of funding.

   同义词closecollapsefailgo undershut down

   反义词flourishprospersucceedthrive

短语动词变体fold up