2003年4月26日，当他在犹他州爬山时，他发现自己处于非常危险的境地。
On April 26, 2003, when he climbed in Utah, he found himself a very dangerous situation.
世界心脏日的主题“你的心脏有多年轻”，致力于通过控制三大危险因素饮食、身体活动和烟草使用来预防心血管疾病。
The theme of World Heart Day, "How Young is Your Heart" addresses prevention of cardiovascular diseases by controlling three major risk factors: diet, physical activity and tobacco use.
霜冻的危险过去后，在这个地区大约是在四月一日左右，我从苗圃买八棵西红柿苗。
When the danger of frost is past, which is about the first of April in this part of the country, I buy eight tomato plants from a nursery.
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