"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"
"an equable temper"
"not everyone shared his placid temperament"
"remained placid despite the repeated delays"
Except for the slight..wind.., the waters lay placid and unmoved.
出自： P. S. Buck
Disturbed by Cleaver's placid acceptance of the fact that his home was disintegrating over his head.
出自： J. Mark
Over-excitedsthis was an ominous symptom in a woman who was ordinarily placid.
出自： D. Cecil