FluentPlex

drop in

动词
  1. Used other than figuratively or idiomatically: see drop, in. · The keys were dropped in the fishbowl.
  2. To arrive casually and unannounced, with little or no warning; also, to visit without an appointment. · I was in the garden covered with mud when my grandmother dropped in for a visit.
  3. To paddle into and take off on a wave another surfer is already riding. (intransitive)
  4. To fall in; to cave in. (intransitive)
  5. To install components, particularly car engines. (US, transitive) · We dropped in all-new parts in the sports car.
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来自图书馆

Well, well, I’ve always worked pretty hard and I’d rather drop in harness.”
《Anne of Green Gables》,第309页 · C1
I dare say that in the course of the day I shall drop in at Norwood and see how you are getting on.”
《The Return of Sherlock Holmes》,第48页 · C1
He started me off upon the letter A, and then he left me; but he would drop in from time to time to see that all was right with me.
《The Adventures of Sherlock Holmes》,第13页 · B2

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