free-floating
短语a. 未承担义务的, 举棋不定的, 不受约束的
释义与例句
adj.
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1.
That floats in water without attachment to anything and with no means of propulsion
生物
a. 未承担义务的, 举棋不定的, 不受约束的
That floats in water without attachment to anything and with no means of propulsion