helmets are hot
头盔很热
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Helmets are hot!
戴头盔太热。
youdao
The three-pound "advanced combat" helmets are made in one big, hot room inside a new, single-story building.
NPR: Pride and Production in a Vermont Helmet Factory
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