Breakdown:
* Watashitachi (私達) - We (plural, including the speaker)
* Nani (何) - What
* Suru (する) - To do
This phrase is a versatile question used in various contexts, such as:
* Planning an activity: "Watashitachi nani suru?" - "What are we going to do?"
* Asking for suggestions: "Watashitachi nani suru ka na?" - "I wonder what we should do?"
* Expressing uncertainty: "Watashitachi nani suru no ka wakaranai." - "We don't know what to do."
Pronunciation:
* Wa-ta-shi-ta-chi na-ni su-ru
Contextual example:
* Friend A: "Konnichiwa! Kyo wa nani suru?" (Good afternoon! What are we going to do today?)
* Friend B: "Watashitachi eiga o mi ni ikou ka?" (How about we go see a movie?)