be filled with concerns about

• 密切关注

be filled with concerns about的用法和样例：

例句

1. The Liberals continue to pay close attention to ethnic concerns.
   自由党继续在密切关注少数族裔关心的问题。
2. Banks and regulators should be alert to developments in the US mortgage market.
   银行与监管机构均应密切关注美国按揭市场的发展。