| 单词 | perturb |
| 例句 | perturb verb •David's appearance perturbs his parents:worry, upset, unsettle, disturb, concern, trouble, disquiet | disconcert, discomfit, unnerve, alarm, bother, distress, dismay, gnaw at, agitate, fluster, ruffle, discountenance | informal rattle, throw. ANT reassure. |
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