grappling爪鉤學術名詞錨定:電機工程、電力工程拉牢:電機工程、電力工程探線:電機工程[海底線的]探線:電力工程英文釋義the act of engaging in close hand-to-hand combatthe sport of hand-to-hand struggle between unarmed contestants who try to throw each other down