操场装饰了两棵塑料树（plastic palm trees这个不知道是啥），有点突兀和不可思议。
The sandlot was adorned by two inexplicable plastic palm trees.
这似乎是他对雅典同胞,所关心之事务疏离,或不满的表述,我不知道你做啥。
This seems to be a statement of his alienation or disaffection from the concerns of his fellow Athenians. I know nothing about what you do or what you care about.
在这项研究之前，“我不知道啥是太极。”
Before the study, "I didn't know tai chi from a sneeze," said Ms.
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