chigger
US /-ɚ/
UK /-ɚ/

1.
恙螨, 红螨
a tiny mite (larva of a harvest mite) that attaches to the skin and causes itching and red welts
:
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After walking through the tall grass, he found several chiggers on his ankles.
穿过高草地后,他在脚踝上发现了好几只恙螨。
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The bites from chiggers can be very itchy and irritating.
恙螨的叮咬会非常痒和刺激。