slipshod
adj
not done or not doing things carefully; careless 不认真的; 粗心的
slipshod work 不经心做的工作
a slipshod style 散漫的作风
a slipshod worker, writer, etc 马虎的工人、 作者等
You're too slipshod about your presentation. 你表达得太不认真.
Yes, and we must stop people walking on this floor until it's firm. It may be necessary to put up a notice saying Keep off. Another thing, we' ll have to drill a hole in the wall for the electric wires.