ball rolling的用法和樣例：
例句
- No one seems inclined to ask a question, will you set the ball rolling, Tom?
似乎沒(méi)人想要提出問(wèn)題，湯姆，你能開(kāi)個(gè)頭嗎？ - Although they lost interest in the project, they kept the ball rolling.
他們雖然對這項工程不感興趣，但是仍繼續干下去。 - All right, we agree to meet you halfway in order to start the ball rolling.
好吧，為了開(kāi)始做生意，我們同意各讓一步。
