diff --git a/android/assets/jsons/translations/Japanese.properties b/android/assets/jsons/translations/Japanese.properties
index 3559e777bc..770d711fe8 100644
--- a/android/assets/jsons/translations/Japanese.properties
+++ b/android/assets/jsons/translations/Japanese.properties
@@ -965,7 +965,7 @@ Floating Gardens = 水上庭園
 'It is not so much for its beauty that the forest makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from old trees, that so wonderfully changes and renews a weary spirit.'  - Robert Louis Stevenson = 「森が人間の心に訴えかけてくる理由はその美しさではなく、もっと漠然とした何かであり、その空気の質であり、古い木々の息づかいであり、不思議なほど人間の心を癒やしてくれるからである」 - ロバート・ルイス・スティーブンソン
 +[amount]% growth in all cities = 全都市の成長速度+[amount]%
  # Requires translation!
-+[amount]% Production when constructing [unitType] units = 
++[amount]% Production when constructing [unitType] units = [unitType]生産時に生産力+[amount]%
 Temple of Artemis = アルテミス神殿
 
 Walls = 防壁
@@ -1883,7 +1883,7 @@ So, out with it! = ああ、聞いているぞ！
 Furor Teutonicus = 怒れるテウトネス
 67% chance to earn 25 Gold and recruit a Barbarian unit from a conquered encampment = 野営地を征服すると67%の確率で25ゴールドを獲得し、蛮族ユニットを自軍に加える
  # Requires translation!
--[amount]% [param] unit maintenance costs = 
+-[amount]% [param] unit maintenance costs = [param]ユニットの維持コスト-[amount]%
 Berlin = ベルリン
 Hamburg = ハンブルク
 Munich = ミュンヘン
@@ -1995,7 +1995,7 @@ We have many things to discuss and have much to benefit from each other. = 話
 Oh, it's you = ああ、そなたか
 Scholars of the Jade Hall = 翡翠の間の学者たち
  # Requires translation!
-Receive a tech boost when scientific buildings/wonders are built in capital = 
+Receive a tech boost when scientific buildings/wonders are built in capital = 首都に科学関連の建造物/文化財が建設されると、技術力のブーストを得る。
 Seoul = ソウル
 Busan = 釜山
 Jeonju = 全州