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1、track
小道;小径
We set off once more, over a rough mountain track.
我们沿着一条崎岖的山间小路再度出发。
足迹;踪迹
The only evidence of pandas was their tracks in the snow.
熊猫活动的唯一迹象是它们留在雪地上的足迹。
McKee suddenly noticed tire tracks on the bank ahead.
麦基突然注意到前方岸边的轮胎痕迹。
(以卫星、雷达等)追踪…的动向
Our radar began tracking the jets.
我们的雷达开始追踪喷气式飞机的动向。
Forecasters are also tracking hurricane Josephine.
气象预报员也在追踪飓风“约瑟芬”的动向。
2、turn on
打开（设备）；接通（…的供应）
I want to turn on the television.
我想开电视。
She asked them why they hadn't turned the lights on.
她问他们为什么不开灯。
对…进行身体（或语言)攻击;斥责
Demonstrators turned on police, overturning vehicles and setting fire to them.
示威者攻击警察，推翻车辆并将其纵火焚烧。
He turned on Pete and accused him of being mixed up in drugs.
他怒斥皮特，指责他沾染毒品。
突然表现得;突然装出
He could also turn on the style when the occasion demanded.
如果场合需要，他也能瞬间就表现得风度翩翩。
