例句與造句

1. While demanding governments sign the U . N .'s 1951 convection and the 1967 protocol on refugees, most delegates criticized the treaties as limited.
2. The United States acceded to the U . N . protocol on refugees in 1968, but both the President and the Senate believed that acceding to the protocol would require no modification of statutory law.
3. It's difficult to find protocol on refugees in a sentence. 用protocol on refugees造句挺難的