Vocabulary consisting only from characters you are able to read
実用化
じつようか
making practical or useful, implementationsuru
取得
しゅとく
acquisition; (n) worth, redeeming feature, merit, gain, profitsuru
茶畑
ちゃばたけ
tea plantationmix
便り
たより
(1)news, tidings, information, correspondence, letter; (2)news from ... mix
単数
たんすう
singular numbermix
返済
へんさい
repayment, reimbursement, refund, redemptionsuru