Fluorinator
氟化器
🗣️ 情景例句
Under these conditions of payment,-
在这种付款条件下，-
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
Earlier, we were infants and young children, and consequently more vulnerable;
再早一些，我们是幼儿和小孩子，身体较脆弱；