Listing 3. Adding an Airline property to the Trip class.

清单3 .在trip类中添加airline属性。

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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。

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Rachel enjoyed the class field trip to the aquarium in Boston.

拉切尔很喜欢她班级去波士顿水族馆的外出活动。

《柯林斯英汉双解大词典》

I used to... you know, I lived and worked out of Sloane Lab up on the hill and it was easy to have office hours before or after class but now you have to make a special trip.

我以前...,我以前的工作和住的地方都是斯隆实验室外的,小山上,那时的开放时间设在课前或课后对我来说都很方便,但是现在你们就得费点儿周折了

耶鲁公开课 - 基础物理课程节选

going on a class trip, taking a bus, going... I lived in the Bronx,

乘巴士去班级旅行，去……我那时住在布朗克斯，

美国的博物馆教育 - SpeakingMax英语口语达人

Holloway, an 18-year-old graduate of Mountain Brook High School near Birmingham, Alabama, disappeared in May 2005 while on a class trip to Aruba.

CNN: Students try to crack famous cold cases

To promote itself in reality life, online glasses retailer Warby Parker launched the Warby Parker Class Trip, an old yellow school bus retrofitted as a Warby Parker show room and taking a six-month cross-country road trip to nine cities.

FORBES: Why Brand Experiences Matter

However, if she did make an appearance, the luxury jeweler will pay round-trip, first-class air transportation (including to and from Europe) and first-class hotel accommodations for Peretti and another person.

FORBES: The Tiffany-Peretti Deal Could Be Worth $436 Million