A cryptographic system in which units of plain text of regular length, usually letters, are arbitrarily transposed or substituted according to a predetermined code.
密码：一种密码系统，其中固定长度的明文里的单元，通常为字母，被任意倒置或按事先确定的符号系统替换。
Further, letters are usually sent outside the organization, while memorandums are usually internal messages.
此外，信件通常发送到组织外部，而备忘录中通常是内部消息。
Outsiders trying to reach him are, in fact, reduced to passing notes or letters, to which there is usually no reply.
事实上，外面那些想接近他的人，最终都只能给他递纸条和写信，而且通常是收不到回复的。
In narrow sense, it is a chiefly social organization of men students at a college or university, usually designated by Greek letters.
从狭义上来说，它主要是学院或大学里男生的主要社会组织，通常以希腊字母命名。
Swine flu's threat is so great that the NHS must avoid only small Numbers of personnel getting immunised, as usually happens with seasonal flu every winter, the letters add.
信函还补充说，猪流感的威胁极大，因此国民保健署必须避免象每年冬天季节性流感时那样，常常只有少数员工接受免疫接种的情况。
I usually write my best speeches and letters [in my head] while out running.
我常常是在在户外跑步的时候，得到灵感构思出了自己最棒的演讲和书信。
A mark, usually a dash (?), indicating the omission of a word or of a letter or letters.
省略符号一标记，通常为破折号(—)，指一个单词或字母的省略。
Telegrams are usually typed out in capital letters.
电报通常都用大写字母打出。
Usually we write family letters or business letters, according to a certain format.
人们通常根据某种格式来写家信或商业信函。
To help avoid name clashes, preprocessor variables usually are written in all uppercase letters.
为了避免名字冲突，预处理器变量经常用全大写字母表示。
We usually make payment by letters of credit or adopt some other modes of payment such as immediate payment, deferred payment and payment by installments.
我们的支付方式通常是信用证或采用其它的付款方式，如实时付款、延期付款、分期付款。
As I'd been in the habit for years of writing my thoughts down in letters (which I usually never delivered), I picked up my trusty yellow legal pad and began pouring out my feelings.
多年来，我已经习惯于用信写下自己的思想(我从未想过寄给谁)，我拿起我那忠实的黄颜色的本子，并开始让我的感觉奔流而出。
Letters confirming appointments are usually very short. When accepting an appointment, your reply should deal with the following items.
约晤确认信一般都非常简短，如果接受约晤，你的回信应。
His letters were usually all form and padding.
他的信通常都是说些客套和可有可无的话。
We use these to send letters, usually.
我们通常用这些信封来发送信件。
Today, with the quick pace of life, people usually do not have as much time to write letters as before.
今天由于生活节奏加快了，人们不再像以往那样有时间写信。
He usually writes a lot of letters, but he isn't writing at present.
他经常写许多信，但他现在没有写信。
Aoyama: Usually I receive approximately 80 letters per post and Internet.
刚昌：通常我每次通过邮寄或者网上会收到大约80封的信件。
It is usually made up of geometrical diagrams, letters, figures and simple words. The contents of shipping mark are as follows.
这种标志又称唛头，通常是由一个简单的几何图形和一些字母、数字及简单的丈字组成。
For exports, we usually adopt irrevocable letters of credit available by seller's documentary drafts at sight.
我方通常的支付方式是通过中国银行开立的，以出口商为头的，不可撤消的信用证。
You can do this by taking out "unimportant" letters in the words (usually vowels) and using Numbers instead of words.
你可以去掉单词中“不重要”的字母(通常是元音)及用数字代替单词。
Businesss letters are usually formal, but we write in a informal way to family members or friends.
商业信件通常都是讲究格式的但我们给家人或朋友写信就比较随便了。
Swash letter a florid version of standard italic capital letters, usually used for ornamentation. Swash capitals are often used with italic lower case letters.
加上装饰的标准斜体英文大写字母；作装饰用。花饰大写，通常配合斜体小写使用。
We usually make payment by letters of credit or adopt some other modes of payment such as immediate payment, deferred payment and payment by installments.
我方通常通过信用证支付，或采取其他支付方式，例如即时付款，延期付款和分期付款。
Four Hebrew letters usually transliterated as YHWH Yahweh or JHVH signifying the Hebrew name for God which the Jews regarded as too holy to pronounce.
四个字母的希伯来文来表示上帝的希伯来语名字(这样犹太人会觉得太神圣无法发声)。
Four Hebrew letters usually transliterated as YHWH Yahweh or JHVH signifying the Hebrew name for God which the Jews regarded as too holy to pronounce.
四个字母的希伯来文来表示上帝的希伯来语名字(这样犹太人会觉得太神圣无法发声)。
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