默哀: stand in silent tribute 短语和例子在死者遗像前默哀 3分钟 observe three minutes' silence in front of the portrait of the deceased; 全体起立默哀。 all rose and stood in silent tribute
脱帽: take off one's hat; raise one's hat; unbonnet 短语和例子脱帽默哀 bare one's head and mourn in silence