lie的过去式：lay，过去分词：lain；
lay的过去式：laid，过去分词：laid。
lie意为躺、说谎；
lay意为放置、安放。
例句：
I perfectly content just to lie in the sun.
我在阳光下躺着就感到非常满足。
Let's wait and see how the land lies before we do anything.
咱们等弄清情况以后再行动吧。
The boat lay under several feet of water.
那条船沉在水下好几英尺处。
She laid the book flat and opened it up.
她把书放平翻开。
My job is to lay out the text and graphics on the page.
我的工作是设计页面上的正文和图表。
She began to lay her plans for her escape.
她开始周密策划准备逃走。
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