"you're mean enough to shoot a man in the back but you haven't got the guts," roger spoke over his shoulder very quietly. "go put the gun away and go to bed. " “想朝人家背后开枪？你小子打冷枪还没这个胆量，”罗杰镇定自若地说道。“把枪收起来，睡觉去吧。
He answered quietly . " nothing at all . 他镇定自若地回答， “我没搞任何鬼。 ”
He behaved calm during the dangerous situation 在这个危险的处境中他表现得镇定自若
We must keep as cool as a cucumber in an emergency 我们要在危急时刻保持镇定自若的。
Jeremy looks as cool as a cucumber on any occasion 在任何场合杰里米都看起来镇定自若
He showed himself calm in emergency 他在情况危急时，态度从容，镇定自若。
His courage / presence of mind deserted him 他丧失了勇气[再不能镇定自若]
He showed himself calm in an emergency situation 他在紧急情况时，态度从容、镇定自若。
He showed himself calm in an emergency situation 他在情况危急时，态度从容，镇定自若。
