白板纸可以提前准备好，你也可以在你演讲的过程中写或者画，特别是记录下观众的反应。
A flipchart can be prepared prior to your presentation. You can also write or draw during your presentation - especially to record audience responses.
用脑子或笔记下（拿着笔与纸应该没问题——这会让你的手不闲着），以便于让你的反应在接下来的谈话或以后的面试中更有针对性。
Take mental or actual notes (it's OK to have pen and paper handy–it'll keep your hands busy) in order to shape your responses accordingly for future interviews or later in the conversation.
BPA被用在热敏纸的表面涂层中，这种热敏纸和染料发生反应从而显示黑色字迹的收据每天在数以百万的美国人手中传递着。
BPA is used to coat thermal paper, which reacts with dye to form black print on receipts handled by millions of Americans every day.
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