[題目] we propped up the beams with long boards
-----書名: New ToEIC Official test-preparation
test2 聽力 第9題
The taller ladder is propped up against the building.
to support something by placing it against something
支撐
想請問We propped up the beams with long boards.這一句是什麼意思？
beams粱或平衡木，boards木板，(跳水的板子嗎？)
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04/04 17:12, , 1F
04/04 17:12, 1F
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