介于: between, intermediate, to lie between...
茫然: blankly, vacantly, at a loss...
乐观: optimistic, hopeful...
反弹: to bounce, to bounce back, to boomerang, to ricochet, rebound (of stock market etc), bounce, backlash, negative repercussions...
杀手: killer, murderer, hit man, (sports) formidable player...
约会: appointment, engagement, date, to arrange to meet...
半途而废: to give up halfway (idiom); leave sth unfinished...
护士: nurse...
癌: cancer, carcinoma, also pr....
打针: to give or have an injection...