波澜
billows; great waves (fig. of a story with great momentum)
勃兰登堡
Brandenburg (e.g. gate, concertos)
博览会
exposition; international fair
波澜壮阔
surging forward with great momentum; unfolding on a magnificent scale
波澜老成
splendid and powerful (of story); majestic; awesome
波澜起伏
one climax follows another (of thrilling story)
世界博览会
World Expo; abbr. to 世博[Shi4 bo2]
万国博览会
universal exposition; world expo