未免: unavoidably, can't help, really, rather...
补习: to take extra lessons in a cram school or with a private tutor...
嘴巴: mouth...
欣赏: to appreciate, to enjoy, to admire...
望远镜: binoculars, telescope...
天然气: natural gas...
公顷: hectare...
细微: tiny, minute, fine, subtle, sensitive (instruments)...
愚公移山: the old man moves mountains (idiom); where there's a will, there's a way...
排名: to rank (1st, 2nd etc), ranking...