7 press. v--------- n 压力__________ 8 optimistic. adj ----------n 乐观主义_________ pessimistic adj. ------n.悲观主义 _________ 9 type. v ---------- n__________ 10 combine. v--------- n. __________ 11 receiver. n------------receive. v 12 represent. v 代表-------n/adj. ______ ____ 13 certain---opp. _______--- n. _ __ ___ 不确定性 14 greed n. 贪婪--- adj. _________ 15 motivate v. vt.  激发(兴趣或欲望), 给与动机 n. motivation 动机

pressure

optimism

pessimism

typist

combination

representative

uncertain

uncertainty

greedy