floe

n sheet of floating ice, usu on the sea 成片的浮冰（通常浮於海上的）: Ice-floes are a threat to shipping in the area. 浮冰对这一带的航运是一种威胁.

flinch, fling, flint, flintlock, flinty, flip, flip side, flip-flop, flippancy, flippant, flippantly, flipper, flipping, flirt, flirtation, flirtatious, flit, float, floating, flock, flog, flogging, flood, flood-tide, floodgate, flooding, floodlight, floor, floor show, floor-board, flooring, floozie (also floosie), flop, flop-house, floppy, flora, floral, Florence, Florence Nightingale, Florentine,