turn on 打开，接通(电源，气，水)，反义词是turn off.

turn up/turn down 调高/低音量

例如：天太黑了，请开灯。{#blank#}1{#/blank#}

她离开房间时把灯关了。{#blank#}2{#/blank#}

Please {#blank#}1{#/blank#} {#blank#}2{#/blank#}! The baby is sleeping.

Don't stop{#blank#}1{#/blank#} {#blank#}2{#/blank#} you come to a word or phrase you don't know.

Mike is kind and helpful. We all like to {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} him.

I{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#}.

I have to stay at home {#blank#}1{#/blank#} the heavy rain.