be loyal to

• 对 ... 忠诚； 忠实于 ...

be loyal to的用法和样例：

例句

1. He was loyal to his country.
   他对国家是忠心的。
2. The vassal swore that he would be loyal to the king forever.
   这位封臣宣誓他将永远忠诚于国王。