Tetrachromate
四铬酸盐
🗣️ 情景例句
We had a good time.
我们玩得很愉快。
I'll rub your back with this brush.
我用这把刷子刷你的后背。
but children were then too cowed to let them know how they really felt.
孩子们只不过被吓得不敢让父母知道自己的想法罢了。