by letter

字典網

相關句子：

1. Please inform me by letter of your plans.
   請來信把你的計畫告訴我。
2. You may apply for tickets in person or by letter.
   需票者可親自來申請亦可來信索取。
3. You should apply immediately, in person or by letter.
   你應該立即申請，親自去也好，寫信也好。
4. Reservations can be made by letter or fax.
   可以來信或傳真預訂。