intended to pacify by acceding to demands or granting concessions;
"the appeasing concessions to the Nazis at Munich"
"placating (or placative) gestures"
"an astonishingly placatory speech"
When he did, it was for an intensive nine-day obstacle course, which he tried to negotiate with the placatory charm and openness to dialogue that have marked his diplomacy. 为期九天的紧凑行程，有安抚怀柔的桥段，也有坦诚沟通的对话，奥巴马总统尽现外交魅力。