pressure build-up

• 压力增大

pressure build-up的用法和样例：

例句

1. A balloon expands as the pressure inside the balloon increases.
   气球中的压力增大时，气球就会膨胀。
2. The process is usually preceded by water uptake, increasing the pressure on the cell wall, which stretches.
   这个过程通常发生在细胞吸水之后，使得细胞壁压力增大，细胞壁伸展。