1. 卷舌音：retroactive inhibition 逆抑制 | retroflex 捲舌音 | rewriting rule 重寫規則

2. 向后弯曲的：retrofited 作翻新改进 | retroflex 向后弯曲的 | retroflexed 向后弯曲的

3. 反曲的：retrocession 退后,后退 | retroflex 反曲的 | retroversion 后倾,翻转

4. 反折的; 卷舌的; 后翻的 (形)：retrofit 对...作翻新改进 (动) | retroflex 反折的; 卷舌的; 后翻的 (形) | retroflexed 反折的; 卷舌的; 后翻的 (形)

1. articulate (a consonant) with the tongue curled back against the palate

    e.g. Indian accents can be characterized by the fact that speakers retroflex their consonants

2. bend or turn backward

    Synonym: replicate

1. pronounced with the tip of the tongue turned back toward the hard palate

    Synonym: cacuminal

2. bent or curved backward

    Synonym: retroflexed