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1.soak up 吸收
The plantations soak up radiation and prevent its spread to groundwater.
种植园可以吸收辐射并防止其蔓延至地下水中。
Some researchers are working on sponges made of carbon nanotubes that soak up hydrogen.
一些研究者正在致力于由碳纳米管制成的海绵体来吸收氢气。
2.expose to 暴露于；公开揭露
When expose to hydrogen sulfide in extremely high concentration, "shock-like" poisoning may appear. The sufferer may suddenly fall in seconds and stop breathing.
在接触极高浓度硫化氢时，可发生“电击样”中毒，接触者在数秒内突然倒下，呼吸停止。
To expose to danger or harm.
暴露于危险和伤害之下。
3.protect against 保护，保卫
Scientists are working on vaccines to protect against the new virus.
科学家们正在研制疫苗，以防止出现变异病毒。
Several studies suggest that a daily caffeine habit may help protect against alzheimer's disease.
有几项研究表明，每天喝点咖啡的习惯有助于预防老年痴呆症。
