建议在晴朗天气里每隔一到两个小时涂抹防晒霜。
It is suggested that sunscreen be applied every one to two hours in a sunny day.
拂晓时晴空万里，预示着温暖晴朗的天气。
The day dawned bright and clear, with the promise of warm, sunny weather.
例如，在晴朗的天气里，气压通常很高，空气是静止的，而且经常含有灰尘。
For example, in fair weather, the air pressure is generally high, the air is still, and often full of dust.
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