covering letter的复数形式怎么拼写？

附信...

covering letter的音标：covering letter的英式发音音标为：['kʌvərɪŋ 'letə]covering letter的美式发音音标为：['kʌvərɪŋ 'lɛtɚ]...

Applicants are asked to send in a CV and a covering letter.申请人需要提交一份简历和附函。Please also find attached a covering letter from our Daventry Depot Manager.同时附上从我们的达文特里站经理求职信.Please send your CVs covering letter bye - mail to ...