符号键是计算机与用户或其他设备通信的桥梁。分为分隔符、特殊字符和空格字符。
键包括字母键、数字键、标点符号键和一些特殊字符。
The keys include letters, numbers, punctuation marks, and some special characters.
当你想标记一句话或者一个停顿时,请千万控制你去点击标点符号键的冲动。
When you intend to add a period or comma, resist the urge to tap that key.
为了免却从安卓的字母键盘切换到数字与符号键盘的麻烦,按下点号键便可看见常用的标点与其他符号。
Android's letter keyboard to its number and symbol keyboard, hold down the period key to see commonly used punctuation marks and symbols.
It's also important, once we start talking about molecules, to have a way to represent them, and also to be able to look at a shorthand notation for a certain molecule and understand what the bond is.
还有很重要一点是,一旦我们开始讨论分子,我们需要有一种表示它们的方法,而且能够从中看出,某些分子的简化符号,并得知键的类型。
应用推荐