1·The balloon will dilate with air.
气球充气将会膨胀。
2·When the eyes, mainly the cornea, are deprived of water and oxygen, cells die and blood vessels dilate, causing syndromes such as itchiness and bloodshot eyes.
当眼睛(主要是角膜部分)接触不到水份和氧气时，细胞死亡，血管膨胀，进而引发诸如发痒和眼部充血这样的一系列症状。
3·When the eyes, mainly the cornea, are deprived of water and oxygen, cells die and blood vessels dilate, causing syndromes such as itchiness and bloodshot eyes.
当眼睛（主要是角膜部分）接触不到水份和氧气时，就会导致细胞死亡，血管膨胀，进而引发诸如发痒和眼部充血等一系列症状。
4·Pores to dilate dilating.
毛孔在膨胀中张大。
1·What's more, their smaller coronary arteries-the twigs on the arterial tree-can fail to dilate when they should, further restricting blood flow.
而且她们细小的冠状动脉血管，就是主动脉树上的分枝，在需要的时候很难被扩大，更加限制了血流。
2·Tests suggested that steady exposure to dark chocolate prompted chemical changes that helped dilate blood vessels and regulate blood pressure, the researchers said.
研究者称，这些实验暗示，长久稳定地摄入黑巧克力会引起可以帮助扩大血管，调节血压的化学变化。