今天我们要学的词是 pitch in. Pitch in is spelled P-I-T-C-H, pitch, and in, I-N, pitch in.

pitch in 的意思是努力投入、参与。

As parents feel the stress of juggling working from home and home schooling their children during the COVID-19 pandemic, grandparents are pitching in to help. 家长们在新冠病毒大流行期间感受到在家里一边上班，一边辅导孩子学习的压力，祖父母们正积极提供帮助。

Employees of Major League Baseball teams, including players, executives and stadium workers, are pitching in for a 10,000-person coronavirus study designed to map the spread of the virus in cities across America. 美国职业棒球大联盟球队的员工，包括球员、高管和体育馆工作人员，都在积极参与一项针对一万人进行的旨在了解冠状病毒在美国各城市传播情况的研究。

好的，我们今天学习的词是 pitch in, pitch in, pitch in ...