reinforcement

n. /ˌriːɪnˈfɔːrsmənt/ B2

加固；强化；增援

The act of making something stronger by adding extra material or support.

仙境例句

The two ladders shook in the wind, so Pat tied on a third rope as reinforcement.

两把梯子在风里直晃，帕特就又绑上第三根绳子来加固。