alacritous

adj.quick and eager

"an alacritous response to the invitation"

1. The alacritous response from the team impressed the manager.
   团队的迅速响应让经理印象深刻。
2. She approached her work with an alacritous spirit that inspired her colleagues.
   她以一种积极乐观的精神投入工作，激励了她的同事们。