此事: this matter...
乐器: musical instrument...
宣布: to declare, to announce, to proclaim...
包含: to contain, to embody, to include...
偶尔: occasionally, once in a while, sometimes...
敏捷: nimble, quick, shrewd...
于是: thereupon, as a result, consequently, thus, hence...
调料: condiment, seasoning, flavoring...
考虑: to think over, to consider, consideration...
哄: to deceive, to coax, to amuse (a child)...