观赏: to look at sth with pleasure, to watch (sth marvelous), ornamental...
势不可当: impossible to resist (idiom); an irresistible force...
占领: to occupy (a territory), to hold...
一举一动: every movement, each and every move...
疑虑: hesitation, misgivings, doubt...
时差: time difference, time lag, jet lag...