brighten
v. /ˈbraɪtn/ A2
发亮；使明亮
To become lighter or make something full of light.
仙境例句
Light from the garden began to brighten the dark hall.
花园里透来的光开始照亮黑暗的大厅。
原著这一句
And so it was indeed: she was now only ten inches high, and her face brightened up at the thought that she was now the right size for going through the little door into that lovely garden.
事实果然如此：她现在只有十英寸高了，一想到自己现在的身材正好可以穿过小门进入那座漂亮的花园，她的脸上顿时露出了开心的神采。
卡罗尔原著 · 第 1 章