(adj.) (of a body of water) free from disturbance by heavy waves; 'a ribbon of sand between the angry sea and the placid bay'; 'the quiet waters of a lagoon'; 'a lake of tranquil blue water reflecting a tranquil blue sky'; 'a smooth channel crossing'; 'scarcely a ripple on the still water'; 'unruffled water' .
校对:梅勒妮
丹尼整理