declare at the customs

例句：

1. 1. The president declared a state of emergency in the city.
   总统宣布该市进入紧急状态。
2. 2. The scientist declared that the discovery was groundbreaking.
   科学家宣布这一发现是开创性的。
3. 3. The company declared bankruptcy after the economic downturn.
   在经济衰退后，该公司宣布破产。