冲击chōng jī
an attack, under attack, a shock凹凸āo tū
bumpy, uneven, slotted and tabbed joint北极běi jí
the North Pole, the Arctic Pole台风tái fēng
hurricane, typhoon号召hào zhào
to call, to appeal后代hòu dài
posterity, later periods, later ages周边zhōu biān
periphery, rim