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