hold tight onto themselves

• vi. 紧张

例句

用作不及物动词 (vi.)

1. The supply of alloy steel is very tight at present.
   合金钢的供应目前很紧张。
2. His sinews stiffened themselves in tense readiness.
   在紧张的准备状态下他的肌肉绷得紧紧的。