訓 ふく(らむ),ふく(れる) ・ 音 ボウ
Sino-Vietnamese: bành
Body 月 plus 彭 (bành) for sound: swelling up, as in Vietnamese bành trướng (expansion, 膨張).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
膨大な資料を読んだ。 (ぼうだいなしりょうをよんだ)
I read an enormous amount of material.