arch

拱门, 拱形, 足弓

a curved shape in the vertical plane that spans an opening; a curved bony structure supporting or enclosing organs (especially the inner sides of the feet); a passageway under a curved masonry construction; (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it

使成弓形

拱起, 成弓形

主要的, 调皮的, 傲慢无礼的, 狡猾的