请教一下这个触发器，大佬们看看那（魔球相关，原问题已解决）

return19860510

(store_trigger_param_1, ":var_0"),
(store_trigger_param_2, ":var_1"),
(store_trigger_param_3, ":var_2"),
(assign, ":var_3", ":var_2"),
(gt, ":var_3", 0),
(agent_is_alive, ":var_0"),
(agent_is_human, ":var_0"),
(agent_get_wielded_item, ":var_4", ":var_0", 1),
(gt, ":var_4", 0),
(agent_refill_wielded_shield_hit_points, ":var_0"),
(assign, ":var_3", 0),
(set_trigger_result, ":var_3"),
能翻译一下么？

easewater

(store_trigger_param_1, ":var_0"),#
(store_trigger_param_2, ":var_1"),#
(store_trigger_param_3, ":var_2"),#三个触发器参数变量
(assign, ":var_3", ":var_2"),#变量3=变量2
(gt, ":var_3", 0),#变量3>0
(agent_is_alive, ":var_0"),#变量0是活的
(agent_is_human, ":var_0"),#变量0是人
(agent_get_wielded_item, ":var_4", ":var_0", 1),#把变量0左手装备存到变量4
(gt, ":var_4", 0),#变量4>0，即有左手装备
(agent_refill_wielded_shield_hit_points, ":var_0"),#把变量0的盾牌抗击值回满
(assign, ":var_3", 0),#变量3=0
(set_trigger_result, ":var_3"),#触发器返回值为变量3的值