A visitor takes pictures during an orchid exhibition in Bangkok, Thailand, Aug. 7, 2020. The exhibition runs from Aug. 6 to Aug. 12 to celebrate the birthday of Thailand's Queen Mother Sirikit. (Xinhua/Rachen Sageamsak)

A man visits an orchid exhibition in Bangkok, Thailand, Aug. 7, 2020. The exhibition runs from Aug. 6 to Aug. 12 to celebrate the birthday of Thailand's Queen Mother Sirikit. (Xinhua/Rachen Sageamsak)

A visitor takes pictures during an orchid exhibition in Bangkok, Thailand, Aug. 7, 2020. The exhibition runs from Aug. 6 to Aug. 12 to celebrate the birthday of Thailand's Queen Mother Sirikit. (Xinhua/Rachen Sageamsak)

A visitor takes pictures during an orchid exhibition in Bangkok, Thailand, Aug. 7, 2020. The exhibition runs from Aug. 6 to Aug. 12 to celebrate the birthday of Thailand's Queen Mother Sirikit. (Xinhua/Rachen Sageamsak)

A visitor takes pictures during an orchid exhibition in Bangkok, Thailand, Aug. 7, 2020. The exhibition runs from Aug. 6 to Aug. 12 to celebrate the birthday of Thailand's Queen Mother Sirikit. (Xinhua/Rachen Sageamsak)