今天我们要学的词是 strain. strain 的意思是压力，负担。Tijuana could feel the strain as migrant shelters there already are at or near capacity. 墨西哥的蒂华纳可能 会感受到那里已经人满为患的移民避难所的压力。Tonga is one of eight island nations in the South Pacific that owe significant debt to China, which is expected to put severe strain on Tongan finances. 汤加是背负巨大中国债务的南太平洋八个岛屿国家之一，预计这些债务对其财政造成重大压力。