1) 182 is this drawing in effect?
这张图纸有效吗？
2) How many drawings are there in the set?
这套图纸有几张？
3) Did the medicine have any effect?
这药有效吗？
4) There is a piece of paper in it.
这里面有张纸。
5) Does the principle still holds good?
这一原则有效吗？
6) Is the rule in operation yet?
这规则还有效吗？
参考词条