n.狱吏，监狱的看守，总控钥匙，牙钥
Their faint, red turnoff points indicate that.
它们又暗又红的转折点说明了这一点.
The evening was a real turnoff.
那一晚真令人倒胃口.
The flumes are used extensively to measure watershed turnoff.
水槽广泛用于测量集水区的经流流量.
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