meaning for 凹凸 āotū:
- - concave or convex
- - bumps and holes
- - uneven (surface)
- - rugged
liǎngcì两次
shìjièdàzhàn世界大战
zhōng中
guójiā国家
chōngtū冲突
dǎozhì导致
de的
sǐwáng死亡
rénshù人数
chéngxiàn呈现
chū出
jùchǐzhuàng锯齿状
fēngzhí峰值
ㅤ，
suízhī随之
chéng呈
āotū凹凸
què却
chíxù持续
de的
dìjiǎn递减
ㅤ。
Deaths due to state-based conflicts show jagged peaks in the two world wars, followed by a bumpy but consistent trailing-off.