No. You can do usability testing in either a formal or informal setting.
用不着，无论使用正式的或非正式的设备你都可以做可用性测试。
Gastropubs serve restaurant standard food in a more informal setting than restaurants and many take pride in offering healthy food, locally produced.
这些新式餐吧供应饭店级饮食，环境却比饭店随便许多，许多新式餐吧则以供应当地生产、独具当地风味的健康饮食而引以为豪。
"This provides a bit of an informal setting in which to have some of these discussions," White House Press Secretary Robert Gibbs said earlier Tuesday about the dinner.
“这只是一个非正式的商讨的开始，”白宫新闻秘书罗伯特·吉布斯在周二早些时候针对会餐说到。
Inside, every terrace becomes a double height atrium with impressive views over Manhattan, offering a more informal setting for meetings, events and recreational activities.
对室内而言，每个露台则变成了两倍高的天井，它可以让人欣赏曼哈顿的壮观景色，同时也提供了一个非正式的空间用于会议、活动和休闲活动。
But this is an informal phrase, so don't use it in a business setting.
但是这是个非正式场合用语，所以不要在商务环境下用使用这个短语。
An informal working setting helps to build employees enthusiasm and morale.
一个宽松的工作环境有利于建立员工们的工作热情和职业道德。
The restaurant belongs to the fine casual dining category delivering the highest level of food, design and hospitality in an informal and accessible setting.
该餐厅属于精美的休闲餐饮类，在非正式就餐场合中，提供最高水平的食品，设计和服务。
The restaurant belongs to the fine casual dining category delivering the highest level of food, design and hospitality in an informal and accessible setting.
该餐厅属于精美的休闲餐饮类，在非正式就餐场合中，提供最高水平的食品，设计和服务。
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