If the requirements for this trip planner change and I need to support multiple users, I see another m: m relationship emerging.

如果这次旅行计划的需求发生了更改，而且我需要支持多个用户，那么就出现了另一个m： m关系。

youdao

Going back to the trip planner now, let's revisit the domain model and see if any m: m relationships are lurking around. In the first article, I created a trip class, shown in Listing 1.

现在回到trip - planner应用程序，首先回顾一下域模型，并查看有没有潜在的m： m关系。

youdao

Every time I 'm back, I have to write a detailed report of the business trip.

每次出差回来，我都要写一份详细的出差报告。

youdao

American Nick Symmonds won his 800-m semifinal heat, despite having three runners in front of him trip and fall down.

VOA: standard.2009.08.22

While the message began its voyage to the cosmos--a 24, 000 year trip to M-13, a cluster of stars in the constellation Hercules, to be exact--visiting dignitaries listened over a loudspeaker while each bit played as a short, high-pitched tone.

FORBES: How To Talk To Aliens

But, as I'm learning on this three-day pack trip into northwest Yellowstone National Park, the opposite is true: I have no idea how to ride.

FORBES: Magazine Article

The report looked at the extra travel time for peak period travel during 2003 divided by the number of travelers who began a trip during the peak period (6-9 a.m. and 4-7 p.m.).

FORBES: ? AP Photo/Don Ryan