But, my dear niece, please do consider my words very carefully before you decide.
但是我的孩子,在你做出决定之前请一定要认真考虑我的话。
After the accident, all the lines and taps were clearly marked and new people joining the workforce were given a talk on safety before they started work.
火灾过后,所有的管道和龙头都被标得一清二楚,而且加入劳动队伍的新工人在开始工作之前要接受有关的安全教育。