1·If the weather is wet or cold choose an indoor activity.
如果下雨或是天气寒冷，就选择室内活动。
—— 《柯林斯英汉双解大词典》
2·That's my favorite indoor activity.
那是我最喜欢的室内活动。
3·What's your favorite indoor activity?
你最喜爱的室内活动是什么？
4·Children love it and it's a great indoor activity.
孩子爱它的一个伟大的室内活动。
5·Since it was raining, we chose an indoor activity.
因为下雨，我们选择在室内活动。
6·But also cannot pass thin, with opening lamp hind in the evening from outdoors look not clear indoor activity is advisable.
但也不能过薄，以晚上开灯后从户外看不清室内的活动为宜。
7·They have been widely used in commercial appearance and indoor activity space occasions and have become the latest substitute traditional roller shutter doors.
广泛用于商业门面及室内活动分隔场合，成为传统卷帘门的最新替代品。
8·Designed with five stories, the laboratory block houses a double hight indoor activity hall at the ground and basement floors, which can be used for sports also.
设计为五层高的实验室体块容纳了一个包括地下层和一层的两层高的室内活动大厅，它也可以被用于体育活动。
9·Nielson came up with rules for the handball sport and promoted it in 1906; the sport gradually spread to various countries in Northern Europe, where it became a winter indoor activity.
1906年尼尔森制定手球规则并加推展，此项运动在北欧各国逐渐盛行，成为一种冬季的室内活动。
10·In contrast to the EPA's regulatory activity of outdoor air pollutants, there is little in the way of regulation of indoor pollutants.
对照EPA室外空气污染的法规活动，几乎在室内污染的法规上无所作为。