pinning

• 指情侣之间相互承诺专一交往的约定，在校园文化中历史上以赠送兄弟会徽章作为象征。

A noun referring to a mutual promise between a couple to exclusively date each other, historically signaled on college campuses by the giving of a fraternity pin.

1. Mutual dating promiseB2informalamerican

   A mutual promise between a couple to date exclusively, often symbolized by the giving of a fraternity pin, especially on college campuses.

   互许专一约会承诺

   • They decided to make it official with a pinning ceremony.
   • Pinning was a popular tradition in fraternities during the 1950s.
   • She accepted his fraternity pin as a sign of their commitment.

• 动词，指用别针等把某物固定或别住，也泛指把某人或某物固定在某处、使其不能移动。

A verb used to indicate the act of fastening or attaching something with a pin, or to hold someone or something firmly in place.

1. A2formal

   To attach or fasten something with a pin or similar object.

   别上

   • She pinned the note to the bulletin board.
   • He pinned the badge onto his jacket.
   • The tailor pinned the hem of the dress.

   同义词affixattachclipfastenfixsecureskewerstaplesticktack

2. Hold down or immobilizeB1formal

   To press someone or something against a surface so they cannot move.

   按住

   • The wrestler pinned his opponent to the mat.
   • The fallen tree pinned the car to the ground.
   • He was pinned under the heavy debris.

   同义词anchorconstrainfastenfixhold downimmobilizepressrestrainsecuretrap

   反义词freeloosenrelease

3. Assign responsibility or blameB2informal

   To attribute blame or responsibility to someone.

   归咎于

   • They tried to pin the crime on an innocent man.
   • The manager pinned the failure on the team's lack of effort.
   • Don't try to pin your mistakes on me.

   同义词ascribeassignattributeblamechargefastenfiximputelayplace

短语动词变体pin downpin up