◆ take part in 参加（某项活动、比赛等）
■ as soon as 表示“一…… 就……”，引导时间状语从句。
（穿鞋）把左右脚的鞋穿反 wear one's shoes on the wrong feet
A：When I was a kid, sometimes I wore my shoes on the wrong feet.
小的时候，我有时会把左右脚的鞋穿反。
B：I had trouble telling the left shoe from the right one when I was a kid too.
我小的时候也分不清左右脚的鞋。
■ tell A from B 表示“把A与B区分开”。例如：How can you tell a fake LV handbag from the real thing? （你是如何把假 LV 手提包与正品 LV 手提包区分开的？）
系鞋带 lace shoes
A：You leg's hurt. Can I help you lace the shoes?