private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair,
            com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair.Builder,
            com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPairOrBuilder>
        getTermsPairFieldBuilder() {
      if (termsPairBuilder_ == null) {
        if (!(dataCase_ == 2)) {
          data_ =
              com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair.getDefaultInstance();
        }
        termsPairBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair,
                com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair.Builder,
                com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPairOrBuilder>(
                (com.google.cloud.translate.v3.GlossaryEntry.GlossaryTermsPair) data_,
                getParentForChildren(),
                isClean());
        data_ = null;
      }
      dataCase_ = 2;
      onChanged();
      return termsPairBuilder_;
    }
<pre>
Used for an unidirectional glossary.
</pre>

<code>.google.cloud.translation.v3.GlossaryEntry.GlossaryTermsPair terms_pair = 2;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/GlossaryEntry.java