Vocabulary consisting only from characters you are able to read
兆
čou
(1)sign, omen, indication, portent, (num) (2)10^12, 1,000,000,000,000, trillion (American), (obs) billion (British) mix
~中
~čuu
in (the middle of), within, during, whilejlpt5
~回
~kai
(first, second, etc.) time, roundjlpt5