Second pass

🔰 Grammar/Thanks.md

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+# Thanks
+
+## せっかく (NEW!)
+
+Means "with trouble", "thank you for the trouble", etc.
+Used at the beginning of a phrase.
+
+> [!info] Example
+> ==せっかく==ケーキを{持|も}てきてくれてありがとう。
+> Thank you for bringing the cake.
+
+## 幸い・幸いなことに (NEW!)
+
+{幸|さいわ}い・{幸|さいわ}いなことに means "luckily", "fortunately".
+Used at the beginning of a phrase.
+
+> [!info] Example
+> ==幸い==、{一番|いちばん}{欲|ほ}しかったガシャポンが{手|て}に{入|い}れった。
+> Luckily, I got the gashapon I wanted the most.