袖手旁觀；按兵不動；無動於衷

英譯：
sit on one's hands

例句：

• When I needed help from Helen, she just sat on her hands. (當我需要海倫的幫忙時，她只是袖手旁觀)
• We need the cooperation of everyone. You can't sit on your hands! (我們需要每個人的合作。你們不能袖手旁觀、坐視不管啊!)

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