luck‧i‧ly S3 / lʌkəli, lʌkɪli / 副词

[句子副词] used to say that it is good that something happened or was done because if it had not, the situation would be unpleasant or difficult 同义词 fortunately :

Luckily the museum was not damaged by the earthquake.

luckily for somebody

Luckily for them, he braked in time.