他们出发徒步前本该查查天气的。
They ought to have checked the weather before hiking.
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ought英 /ɔːt/|美 /ɔt/
to英 /tuː/|美 /tu/|英 /tə/|美 /tə/
解释
ought to have checked 表示过去应该检查但未检查，过去应然事件用 have + 过去分词表达。
They ought to have checked the weather before hiking.
ought to have checked 表示过去应该检查但未检查，过去应然事件用 have + 过去分词表达。