她在演讲时显得镇定自若，举止优雅。
She looked ___poised and graceful during her speech.
运动员站在起跑线上，准备起跑。
The athlete stood at the starting line, ___poised to run.
猫静静地趴在树枝上，随时准备跳下。
The cat sat on the branch, ___poised to leap down at any moment.
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