change over phrasal verbphr v to stop doing or using one thing and start doing or using another 改做;改用 → changeover Complete all the exercises on one leg, then change over. 完成一条腿的全部练习后,再换另一条腿做。
to We hope to change over to the new software by next month. 我们希望下个月能够换用新的软件。
→ change over at change1(8)