Inserts an invisible space within a word that will insert a line break once it becomes the last character in a line. Available when complex text layout (CTL) is enabled.
在字词中插入不可见的空格，一旦该空格成为某一行的最后一个字符，它将插入一个换行符。启用复杂文本版式 (Complex Text Layout, CTL) 后可用。