weld decay的用法和樣例：
例句
- In this article, recent research development of weld corrosion behavior of FSW is reviewed.The influence factors are analyzed and the developing trend is prospected.
綜述了近年來國內外攪拌摩擦焊焊縫腐蝕行為的研究進展，分析了影響焊縫腐蝕的因素，展望了發展趨勢。 - Bacteria complete the job by causing decay.
細菌通過引起腐爛而完成這個變化。 - Certain foods promote tooth decay.
有些食物會使牙齒腐爛。
