She wrote a book about her fear that 2)robins would sing no more in future spring times. She called it Silent Spring.
她把对知更鸟在来年春天便不再歌唱的担忧写在一本书里,书名叫《寂静的春天》。
Spring and fall are good times to begin.
VOA: special.2009.03.03
That m times a is the force the spring is exerting.
与 a 的乘积就等于弹簧产生的力
On an overcast spring day, and descendants of internees - gathered at the college for a conference to recall those times, and to create a memorial to those who lived through it.
VOA: standard.2010.06.22
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