YOU SAID:

Yes, they have arrived in good order.

INTO JAPANESE

はい、彼らは順調に到着しました。

BACK INTO ENGLISH

Yes, they arrived successfully.

INTO JAPANESE

はい、彼らは無事到着しました。

BACK INTO ENGLISH

Yes, they arrived safely.

INTO JAPANESE

はい、彼らは無事到着しました。

BACK INTO ENGLISH

Yes, they arrived safely.