second level of operations
/ˈsɛkənd ˈlɛvəl ɒv ˌɒpəɹˈeɪʃənz/
n
English · second level of operations中文 · 第二功能Español · segundo nivel de operacionesFrançais · second niveau d’opérations
Bedeutung：All the supplementary functions listed above the keys and accessible using the access to the second level of operations.