Definition of rainfast in English:

rainfast

adjectiveˈreɪnfɑːst

词汇	rainfast
释义	Definition of rainfast in English: rainfast adjectiveˈreɪnfɑːst (of a chemical spray or other substance) not able to be washed away by rain. （化学喷剂或其他物质）雨水冲不掉的，耐雨水冲的 Example sentencesExamples This spray is longer lasting than the copper sprays used on tomatoes, and it is rainfast. Allow at least six hours for the glyphosate products to become rainfast. This product is cheaper, has a better safety profile, controls both types of rhizomes and is rainfast after 2 hours.
随便看	about face about-face about-faces about in circulation aboutness about round abouts about-sledge about that about the place about there about this about time about time about to about to about to be mentioned about to be punished about to be specified about to break about to collapse about to fall apart about to go bankrupt about to happen about to happen/be