这位自由记者为多家媒体提供报道。

The ___stringer provides news reports for several media outlets.

工程师检查了机翼下方的金属加强梁是否有损伤。

The engineer inspected the metal ___stringers under the wing for any damage.

这位工匠擅长串珠子，是一位经验丰富的串珠师。

The craftsman is skilled at beading and works as a professional ___stringer.