| 单词 | walk/tread a fine/thin line |
| 释义 | ● walk /tread a fine /thin line to be in a difficult or dangerous situation where you could easily make a mistake 处于困境（或险境）；如履薄冰；走钢丝◆ He was walking a fine line between being funny and being rude . 他想滑稽而不粗鲁，难以把握分寸。See also fine |
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