膨胀péngzhàngTop 6000Meanings1. to expand2. to inflate3. to swellCharacters used膨swollen胀to swellExamples1首先shǒuxiān，因为yīnwèi海水hǎishuǐ变biàn热rè时shí膨胀péngzhàng，海平面hǎipíngmiàn可能kěnéng提高tígāo。First of all, the level of the ocean could rise, because ocean water expands as it grows warmer.