He tried to force a copy of his book into my hand.
他硬要把他的一本书往我手里塞。
In 1952, the US Air Force began Project Blue Book, a study program on UFOs.
1952年，美国空军开始着手实施“蓝皮书计划”，这是一项针对不明飞行物的研究项目。
Not try to force you to look at the book.
而不是试图强迫你去看书。
That is to say the first see a book do not force his to carry on the back, want to understand however.
就是说第一遍看书不要强迫自己去背，而是要理解。
In 1952, the US Air Force began Project Blue Book, a study program on UFOs.
1952年，美国空军开始着手实施施“蓝皮书计划”，这是一项针对不明飞行物的研究项目。
In 1952, the US Air Force began Project Blue Book, a study program on UFOs.
1952年，美国空军开始着手实施施“蓝皮书计划”，这是一项针对不明飞行物的研究项目。
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