医生办公室的老式病历系统仍然使用卡片索引来记录病人的信息。

The old medical records system in the doctor's office still uses a ___card-index to keep track of patients' information.

秘书正在将客户资料按字母顺序编入卡片索引系统。

The secretary is ___card-indexing the client files alphabetically.