英语语法分析

Whisk the egg whites until they are foamy but not stiff.

挥打蛋清起沫但不变硬。

《柯林斯英汉双解大词典》

Primate foamy viruses can infect humans harmlessly, but researchers fear they may evolve to become dangerous.

灵长类泡沫病毒可以感染人类但无害，但研究人员担心它们可能会演变成具有危险性。

Before landing on the beach, the oil had become "weathered," made foamy and gooey by extended exposure to air and water.

冲上沙滩之前，油块经过“风化”，在空气和海水作用下变得泡沫化，有粘性。