heightens
v.
（使）变高， （使）增大( heighten的第三人称单数 );
（使）提高;
（使）加强[重];
例句:
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This only heightens our admiration.
这只能使我们更加敬佩.
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The automation line heightens the effect.
自动线能提高效率.
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Wax applied to a floor heightens the shine.
地板蜡能增加亮光.
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Fear of inflation often heightens gold's appeal.
来自VOA
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The move heightens tensions between the neighbours.
来自BBC
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That heightens the ongoing need to attract talented, skilled people.
来自THETIMES