压力不可数。
pressure:n.压力;挤压;压强;大气压;
v.施加压力;迫使;使(机舱等)增压
Water supplies to the house are at low pressure.
这房子的供水水压低。
I need to have my blood pressure taken.
我需要量一下血压。
High blood pressure is a common accompaniment to this disease.
这种病通常伴随有高血压。