en‧sure S2 W1 AC / ɪnʃʊə $ -ʃʊr / especially British English ( also insure American English ) 动词 [及物动词]

to make certain that something will happen properly 同义词 make sure :

facilities to ensure the safety of cyclists

ensure (that)

The hospital tries to ensure that people are seen quickly.

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In everyday English, people usually say make sure rather than ensure :

Please make sure all the windows are closed.

Make sure is followed by a clause (with or without that ), never a direct object: regulations to ensure their safety ➔ regulations to make sure (that) they are safe