"an infertile couple"
"a sterile operating area" "aseptic surgical instruments" "aseptic surgical techniques"
"a sterile ideology lacking in originality" "unimaginative development of a musical theme" "uninspired writing"
sterile是什么意思
sterility是什么意思
sterilize是什么意思
sterling是什么意思
stern是什么意思
sternal是什么意思
sternforemost是什么意思
sternly是什么意思
sternmost是什么意思
sternness是什么意思