名词 underpass:

1. an underground tunnel or passage enabling pedestrians to cross a road or railway

underactv.不充份地表演；不卖力地演underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的under no obligation to that没必要做那事under-discharged bankrupt无清偿能力的破产under bridge of underpasses下穿式立交桥underflow of the classifier分级机的下层流undermining burrowing ulcer洞穴崩蚀性溃疡under-age drinking/sex未成年人的饮酒/性行为under voltage load shedding低压减载Undertrochanteric osteotomy粗隆下截骨术underemployment equilibrium就业不足的均衡状态underdeveloped tourism area旅游后发地区

1. It is an overhead pass used to change the direction of the dig and put the ball in a good position for the spiker.
   这是一种过顶传球，用于改变垫球的方向，并将球调整到一个方便扣球手的有利位置。