ピットやマンホールには酸素濃度計なしで入っちゃだめ 中で人が倒れてても空気呼吸器なしで慌てて入っちゃダメ どちやとの約束だよ
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.