#29: expected an expression(expression可数)
指某一具体表达方式时是可数的比如:All their expressions were not true.他们所有的表情都不是真的。
指抽象的表示, 表现, 表达时不可数比如:He closed his letter with expression of grateful thanks.他在那封信的结尾表达了自己的感激之情。
指某一具体表达方式时是可数的比如:All their expressions were not true.他们所有的表情都不是真的。
指抽象的表示, 表现, 表达时不可数比如:He closed his letter with expression of grateful thanks.他在那封信的结尾表达了自己的感激之情。