vade-mecum/ˌvɑ:dɪˈmeɪkum, ˌveɪdɪˈmi:kəm; ˌvɑdɪ`mekəm, ˌvedɪ`mikəm/ nhandbook or other small useful work of reference 手册; 便览 The spelling dictionary is a vade-mecum for all secretaries. 拼法字典是秘书必备的手册.
牛津英汉双解词典