abiding; consistent-(ly); infallibly; never fail to; persevering (ly);persistent (ly); steadfast (ly); summer and winter unchanging; unfailing (ly); unswerving (ly)
? 我們將永遠(yuǎn)銘記他對我國人民的真誠而～的友誼。He will always be remembered by us for his sincerity and abiding friendship towards the Chinese people.
始終不渝
unswerving;unfailing;steadfast
對黨對人民忠心耿耿～remain loyal and devoted to the Party and the people to the end of one’s life /～地支援各國人民的正義斗爭steadfastly support and aid the people of all countries in their just struggles
始終不渝shǐ zhōnɡ bù yú
渝：改變。自始至終一直沒有改變。consistent, as always, steady