【英语时差8,16】孕妇不宜穿高跟鞋（下）

When you’re pregnant, the extra weight and girth shifts your center of gravity forward, which makes it harder to maintain balance even in sensible, flat shoes.Perched up on high heels, the shift in your center of gravity makes stumbling all the more likely. Pregnancy¹ also causes some swelling³ in the feet and ankles that affects how signals are sent to parts of the brain responsible for maintaining balance. So when you’re pregnant it can be harder to sense which way to shift to stay upright if you stumble. Again, wearing heels will only raise the risk for stumbling in the first place. Experts say that the best shoes to wear when you’re pregnant are wide, flat shoes with soft arch supports and plenty of wiggle room for the toes. When you’re pregnant, your feet may swell² more than is normal during the day, making shoes that fit in the morning feel too tight by the evening.

1 pregnancy   

n.怀孕，怀孕期

参考例句：

• Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
• Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。

2 swell   

vi.膨胀，肿胀；增长，增强

参考例句：

• The waves had taken on a deep swell.海浪汹涌。
• His injured wrist began to swell.他那受伤的手腕开始肿了。

3 swelling   

n.肿胀

参考例句：

• Use ice to reduce the swelling. 用冰敷消肿。
• There is a marked swelling of the lymph nodes. 淋巴结处有明显的肿块。