凭信用接受， 不经证明[仔细考虑]就相信
1. 轻信,不加深究地：know the ropes 了解情况,懂行 | take on trust 轻信,不加深究地 | on trust 赊账购买
1. Parents trust their children enough to give them money before they pass away, and children in turn take care of their aging parents later on.
2. To remove people's concern on food safety and regain their trust, supervision departments have to take more routine and systematic measures.