今天我们要学的词是 constraint.

Constraint 的意思是限制、约束。U.S. State Department has pulled out personnel from its embassy in Caracas, citing the presence of the diplomatic staff “has become a constraint on U.S. policy” given the deteriorating situation in Venezuela. 美国国务院已将驻加拉加斯大使馆人员撤离，称鉴于委内瑞拉局势恶化，外交人员留在当地“已对美国政策带来限制”。

Private companies in Rwanda see high taxes stemming from multiple taxation as the major constraint to doing business in the country. 卢旺达的一些私企认为多重赋税导致的高额税费是在该国开展业务的主要制约因素。