请把钥匙放在右手边的抽屉里。

Please put the keys in the ___right-hand drawer.

这把剪刀是专为右撇子设计的。

These scissors are specially made for ___right-handed users.

她是经理最得力的助手，负责所有重要项目。

She is the manager's ___right-hand assistant, handling all major projects.