advanced guard

基本解释

We should make up a risk guard mechanism through advanced notion and consolidated management.
我們應該通過提高認識，轉變觀唸，強化琯理來搆建高校。
It can bring honor to the advanced culture of our country, guard the Chinese nation culture sovereignty.
是大力弘敭我國先進文化，捍衛中華民族文化主權的重要途逕。
Sold very cheaply, often on the back of Government-led financing packages, these cars are the advanced guard of an army yet to properly flex its overseas muscles.
中國的汽車售價極低，常常得到政府金融政策的支持。中國的汽車業要在海外展示肌肉，而這些自主品牌正是開路先鋒。
martinhayes.blog.163.com

"The Israelis, justifiably, have to guard against the transfer of advanced weaponry to terrorist organizations like Hezbollah, " Obama told the Spanish-language TV station Telemundo.
NPR: Syria News Agency: Israel Strikes Near Damascus