fair play 公平竞赛，公平对待
in demand 有需要，销路好
rest room 厕所，盥洗室
primary school 小学
side by side 肩并肩，一个挨一个
heart and soul 全心全意
step by step 逐步
ahead of time 提前
all the time 一直，始终
once upon a time 从前
once in a while 偶尔，有时
no wonder 难怪，怪不得
word for word 逐字地
decline with thanks 婉言谢绝
