大棚: greenhouse, polytunnel...
美景: beautiful scenery...
空闲: idle, free time, leisure, unused (place)...
努力: great effort, to strive, to try hard...
出道: to make one's first public performance (of an entertainer etc), to start one's career...
锤: hammer, to hammer into shape, weight (e.g. of a steelyard or balance), to strike with a hammer...
恶性: malignant, wicked, vicious (circle), producing evil, rapid (decline), runaway (inflation)...
预示: to indicate, to foretell, to forebode, to betoken...
学习: to learn, to study...
问题: question, problem, issue, topic...