quieten

1. V-T/V-I If someone or something quietens or if you quieten them, they become less noisy, less active, or silent. 使安靜; 安靜[英國英語]

The wind dropped and the sea quietened. 風勢減弱了，大海平靜下來。

2. V-T To quieten fears or complaints means to persuade people that there is no good reason for them. 消除 (恐懼); 平息 (抱怨)[美國英語]

Supporters of the constitution had to quieten fears that aristocrats plotted to steal the fruits of the revolution. 憲法的支持者們不得不消除人們對貴族陰謀竊取革命成果的恐懼。