insect collecting; bug hunting; capturing beetles, butterflies, or other insects

arrival of a foreigner in Japan

停滞: stagnation / 艇隊: group of ships / 梯隊: echelon formation / 堤体: body of breakwater or embankment / 艇体: body of ship

障壁, 牆壁, 墻壁: a barrier, an obstruction / 牆壁, 墻壁: fences and walls, a hedge / 峭壁: a steep cliff / 晶癖: crystal habit