a)SLAthe sign (') that is used in writing to show that numbers or letters have been left out, as in ‘don’t’ (=do not) and ’86 (=1986) 撇号,省字符〔用于表示数字或字母的省略〕
b)CONNECTED WITHthe same sign used before ‘s’ to show that something belongs to someone or something, or is connected with them, as in ‘John’s book’, or ‘Charles’ mother’, or ‘Henry’s first year as a teacher’ 撇号,所有格符号〔用于s之前表示所有格〕
c)SLAthe same sign used before ‘s’ to show the plural of letters and numbers as in “Your r’s look like v’s.” 撇号,复数符号〔用于s之前表示字母或数字的复数〕