sousa
operation (of a machine)
この機械の操作は簡単です。
この きかい の そうさ は かんたん です。
kono kikai no sousa wa kantan desu.
Operating this machine is easy.
Memory tip操作 = operation (of a machine)
Tie 操作 to one concrete moment from your own week in Japan where “operation (of a machine)” came up — a word anchored to a real scene sticks far better than a definition.
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