"their concentrated efforts" "his concentrated attention" "concentrated study" "a narrow thread of concentrated ore"
"her concentrated passion held them at bay"
"a saturated solution"
concentrated是什么意思
concentration是什么意思
concentrative是什么意思
concentrator是什么意思
concentre是什么意思
concentric是什么意思
concentrical是什么意思
concentricity是什么意思
concept是什么意思
conceptacle是什么意思