s. received directly from a source
r. from the original source; directly
a. 直接的, 直接得来的, 直接采购的
adv. 直接地
1. I heard firsthand about the event from my friend who attended.
我从参加活动的朋友那里直接听说了这件事。
2. She has firsthand experience in teaching English to children.
她在教孩子们英语方面有直接的经验。
3. The journalist reported firsthand on the situation in the war zone.
这位记者直接报道了战争地区的情况。