instructional aid的用法和样例：
例句
- I like to have a visual aid to help me with the wonderful buildup I give you.
我想有个直观的教具还有我给你的那些极好的经验来帮我。 - Parents in Kunshan, Jiangsu, are confused as the teachers of a local kindergarten use Mahjong as teaching aid.
江苏昆山一家幼儿园因把麻将带进教室当教具，令部分家长觉得难以接受。
instructional aid的相关资料：
临近单词
instruction mix
instruction
instruction check programme
instruction look ahead unit
instruction-set simulator
Instruction to the Bank for
instruction fetch operation
Instructional Design Theory
Instruction interpretations
instruction control circuit
instruction execution phase
instruction cache miss rate
