onto

onto
preposition

用法

The preposition onto written as one word (instead of on to) is recorded from the early 18th century and has been widely used ever since, but is still not wholly accepted as part of standard English (unlike into, for example). Many style guides still advise writing it as two words, and that is the practice followed in this dictionary. However, in US English onto is more or less the standard form and this is likely to become the case in British English before long. When used in the specialized mathematics sense, the form is invariably onto.Nevertheless, it is important to maintain a distinction between the preposition onto or on to and the use of the adverb on followed by the preposition toshe climbed on toor ontothe roof but let's go on tonot ontothe next point

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