lower-case letters

基本解释

This behavior applies also to out-of-vocabulary words if you type them in lower-case letters into your dictionary, such as ipod.
這一行爲也適用於詞滙表以外的單詞，如果將它們以小寫字母的形式輸入到字典中的話，例如 ipod。
Note: To make sure, that you can find all occurrences of the specified terms, and because these terms are not known by the underlying dictionary, write the terms in all lower-case letters.
注意：要確定您可以找到指定術語的所有匹配項，竝且由於這些術語對於底層字典是未知的，需要全部使用小寫字母寫入術語。
All names are lower-case letters, there are no more than 10 people in a group, and no name is more than 12 characters in length.
所有名字都是小字字母，每個圈子不會超過10個人，所有名字都小於或等於12個字符長度。

They would just be letters—and lower-case ones, to boot.
ECONOMIST: Time to start giving extrasolar planets proper names