鉴于大家对英语英语考证PETS写作十分关注，我们编辑小组在此为大家搜集整理了“13年PETS4写作精选短语参考点”一文，供大家参考！
13年PETS4写作精选短语参考点
Acid test
a decisive, crucial test of something’s true worth or someone’s true abilities (coming from the use of nitric acid to test the authenticity of gold samples)
EXAMPLE:
“We liked the new manager, but we knew the acid test would be how she did when she opened our new office in San Francisco by herself.”