Definition
In a state of readiness, awaiting the signal to commence a race or other event.
指比賽或活動即將開始，等待發令。
All the participants were in their positions, under starter's orders, ready to begin the race at the sound of the gun.
所有參賽者都已就位，準備就緒，等待槍聲一響就開始比賽。
After weeks of preparation, the company's new product was finally under starter's orders for launch.
經過數週的準備，公司的新產品終於準備就緒，等待發布。
After a lengthy preparation process, their research project was finally under starter's orders and ready to go.
經過漫長的準備過程，他們的研究項目終於準備就緒，隨時可以開始。