left(反义词）fifth(基数词)different(反义词)postcard(复数)dictionary(复数)bus(复数)

right
five
easy
postcards
dictionaries
buses

right （左右）
five （five-fifth）
same （不同的——相同的）
postcards 直接加s
dictionaries 辅音字母加y结尾的，把y改i，再加es
buses s结尾的，加es

right
five
same
postcards
dictionaries
buses

right
five
same
postcards
dictionaries
buses

left(反义词）-----right
fifth(基数词)-----five
different(反义词)-------same
postcard(复数)---------postcards
dictionary(复数)-------dictionaries
bus(复数)--------------buses

right five same postcards dictionaries buses