C1 to notice something that is partly hidden or not clear, or to discover something, especially using a special method(尤指用特殊方法)发现,察觉,看出
C1 to discover something, usually using special equipment(通常指用特殊设备)探测,检测,测出
More examples
The alarm should go off automatically as soon as smoke is detected.
Many serious illnesses can be nipped in the bud if they are detected early enough.
I thought I could detect a slight West Country accent.
In the future, cars equipped with on-board computers will be able to detect and avoid traffic jams automatically.
I could detect subtle variances in fragrance as we strolled through the garden.
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