Seronegativity
血清阴性
🗣️ 情景例句
I wish I had the recipe.
我真希望我有份菜谱。
Don't halloo till you are out of the wood.
没有脱离危险不要先欢呼。
I'm sorry to have done that. I didn't mean to be so rude.
我为那样做感到抱歉。我并不想那样粗鲁的。