东非大地堑

Great East African rift valley

surname Dong

east / host (i.e. sitting on east side of guest) / landlord

East Africa

abbr. for 非洲[Fei1 zhou1], Africa

to not be; not / wrong; incorrect / non-; un-; in-; de- / to reproach; to blame / (coll.) to insist on; simply must

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

earth / mother earth

-ly / structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct

earth / ground / field / place / land / CL:片[pian4]

trench, rift valley

moat around a city