Vocabulary consisting only from characters you are able to read
投下
とうか
(1)throwing down, dropping, airdrop, (2)investment suru
苦戦
くせん
hard fight, close gamesuru
(uk) (col) (id) idiot!baka
人工
じんこう
artificial, manmade, human work, human skill, artificialitymix
願書
がんしょ
written application or petition, application formmix
同士
どうし
fellow, mutual, companion, comrade, bondingmix