a true blue

例句：

1. 1.She is a true blue friend who always stands by me.
   她是一个真正的朋友，总是站在我身边。
2. 2. He is a true blue hero who never gives up in the face of adversity.
   他是一个真正的英雄，在逆境中从不放弃。
3. 3. The true blue spirit of patriotism will inspire us to fight for our country.
   真正的爱国主义精神将激励我们为国家而战。