expel air
英 美
When we exhale we expel air from our lungs.
当我们呼气的时候,肺将空气排出体外。
When we exhale we expel air from our lungs.
空气从肺部排出来。
Fill the syringe with solution, attach the needle and expel air.
注射器吸满漱口液,接上针头,排出注射器内空气。
When you sneeze , you expel air from your lungs.
打喷嚏时会排出肺部的空气.
Fill the syringe with solution, attach the needle and expel air.
注射器吸满漱口液, 接上针头,排出注射器内空气.