升格promote;upgrade
把代表機(jī)構(gòu)～至大使館raise…representation to embassy status/將各自外交代表由公使～為大使promote the status of their respective diplomatic representatives from Minister to Ambassador/將外交關(guān)系～為大使級(jí)upgrade diplomatic relations to ambassadorial level/由縣市級(jí)～為地市級(jí)be upgraded from a county town to a prefecture-level city |