(talking) But after doing his own research, he learned that building with straw bales makes a lot of sense.

VOA: special.2009.10.05

who're interested, (a) in improving their own Spanish- speaking skills, and (b) helping out the community.

如果他们对这个活动感兴趣，想要提高自己的西班牙语水平，同时愿意为社区尽一份力，

帮助多文化的家庭 - SpeakingMax英语口语达人