Tranquil的英文解释是“Pleasantly calm, quiet, and peaceful",要比安静quiet更多一层平静的、宁静的、安谧的意思。例子 Everything's very quiet. very quiet.一点声音也没有。in a state of tranquil contentment.处在平静的满意状态。
tranquil是宁静，quiet是一般意义上的“安静”
