It would be a good idea to call before we leave.

　　我們出發(fā)之前打個(gè)電話(huà)是個(gè)好主意。

　　He was out when I called to see him.

　　我去拜訪(fǎng)時(shí)，他不在家。

　　I'll call back at a more convenient time.

　　在方便的時(shí)候我會(huì )回電話(huà)的。

　　If you have any issues, please call this number.

　　如有問(wèn)題，請撥打這個(gè)電話(huà)號碼。

　　For more information, call this number.

　　欲知詳情，請撥打此電話(huà)號碼。

　　What is he doing calling at this time of night?

　　他干嗎這么晚了還打電話(huà)？