Translation of "mstari" into English

Nilimuangalia kwa karibu na nikashangaa kuwa alisoma kila mstari—kwa makini.

I watched her closely and was surprised that she read every single line—intently.

Waliokaa mstari wa mbele walikuwa ni waumini waliopoteza wapendwa wao na majirani kwenye tetemeko.

Sitting on the front rows were the members who had lost loved ones and neighbors in the earthquake.