Buttresses are supports, usually made of stone or brick, that support a wall.
VERB
加強（論點或制度）；支持（某人）
To buttress an argument, system, or person means to give them support and strength.
例句
He sought to buttress some of his arguments with quotations from Mein Kampf...他引用《我的奮斗》中的語錄來論證自己的觀點。The president's tough line is, however, buttressed by a democratic mandate.然而，總統推行的強硬路線受到了民主黨發布的訓令的支持。