long underwear
US /ˌlɔŋ ˈʌndərwer/
UK /ˌlɔŋ ˈʌndərwer/
1.
长内衣, 保暖内衣
a two-piece garment, typically made of cotton or wool, worn under other clothes for warmth, covering the body from the neck to the ankles and wrists.
:
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He put on his long underwear before heading out into the snow.
他穿上长内衣才出门去雪地里。
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For cold weather, long underwear is essential.
对于寒冷天气，长内衣是必不可少的。