You should follow _____ of the medicine, and take three pills every day.

 –What’s the matter, doctor? --Nothing serious. Take the medicine according to the ______.

Even the experienced doctors dare not carry out the operation because of the         of failure.

The members of the club wouldn't run a _____ in entrusting（委托） the organization to an unreliable person.

I keep medicines on the top shelf, out of the children’s________.