朴素: plain and simple, unadorned, simple living, not frivolous...
打猎: to go hunting...
广告: to advertise, a commercial, advertisement...
指南: to guide, guidebook...
上课: to go to class, to attend class, to go to teach a class...
早期: early period, early phase, early stage...
察看: to watch, to look carefully at...
留心: to be careful, to pay attention to...
感情: emotion, sentiment, affection, feelings between two persons...
