这位年轻球员正在练习左右开弓的打法，希望能在比赛中更具优势。

The young player is practicing ___switch-hitting to gain more advantages in the game.

他在销售和市场营销之间的灵活转换能力让他在公司备受器重。

His ability in ___switch-hitting between sales and marketing makes him highly valued in the company.