黄昏: dusk, evening, nightfall...
重中之重: of the utmost importance, of highest priority...
临床: clinical...
截: to cut off (a length), to stop, to intercept, section, chunk, length...
塑料: plastics...
重要: important, significant, major...
为了: in order to, for the purpose of, so as to...
保管: to hold in safekeeping, to have in one's care, to guarantee, certainly, surely, custodian, curator...
关于: pertaining to, concerning, with regard to, about, a matter of...
交流: to exchange, exchange, communication, interaction, to have social contact (with sb)...
