今日は学んだ表現
out of the blue → informal if something happens out of the blue, it is very unexpected
@[email protected] 空（青い）からいきなり降ってきたの例え
今日は学んだ表現
out of the blue → informal if something happens out of the blue, it is very unexpected
@[email protected] 空（青い）からいきなり降ってきたの例え