2PHRASAL VERB 关小;调低 When you turn down a radio, heater, or other piece of equipment, you reduce the amount of sound or heat being produced, by adjusting the controls. 关小;调低
He kept turning the central heating down. [VERB noun PREP.]
他不断调低中央暖气的温度。
She could not bear the relentless music and turned down the volume. [VERBPREP. noun]
她受不了没完没了的音乐,就把音量调小了。
3PHRASAL VERB (比率)减少;(水平)降低 If the rate or level of something turns down, it decreases. (比率)减少;(水平)降低 [British, journalism]
The divorce rate turned down in the 1950s. [VERBPREP.]