学术: learning, science, academic...
致命: fatal, mortal, deadly, to sacrifice one's life...
优: excellent, superior...
凹: a depression, indentation, concave, hollow...
感染: infection, to infect, to influence...
辞: to resign, to dismiss, to decline, to take leave, ballad (archaic poetic genre), variant of...
手动: manual, manually operated, manual gear-change...
矮小: short and small, low and small, undersized...
凹凸: concave or convex, bumps and holes, uneven (surface), rugged...
垂: to hang (down), droop, dangle, bend down, hand down, bequeath, nearly, almost, to approach...
