使用Google Translate API for Android时如何返回撇号？

import android.os.AsyncTask;
import android.util.Log;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.googleapis.services.AbstractGoogleClientRequest;
import com.google.api.client.googleapis.services.CommonGoogleClientRequestInitializer;
import com.google.api.client.googleapis.services.GoogleClientRequestInitializer;
import com.google.api.client.googleapis.services.json.CommonGoogleJsonClientRequestInitializer;
import com.google.api.client.googleapis.services.json.CommonGoogleJsonClientRequestInitializer;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.translate.Translate;
import com.google.api.services.translate.model.TranslationsListResponse;
import com.google.api.services.translate.model.TranslationsResource;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;

public class TranslateTask extends AsyncTask<String, Void, String> {
    private static final String TAG = "TranslateTask";
    private static final String API_KEY = "YOUR_API_KEY"; // 在Google Cloud Console中获取的API密钥
    private static final String SOURCE_LANGUAGE = "en"; // 源语言
    private static final String TARGET_LANGUAGE = "zh-CN"; // 目标语言

    private Translate translate;

    public TranslateTask() {
        // 初始化Translate对象
        HttpTransport httpTransport = new com.google.api.client.http.javanet.NetHttpTransport();
        JsonFactory jsonFactory = new JacksonFactory();
        HttpRequestInitializer requestInitializer = new CommonGoogleJsonClientRequestInitializer(API_KEY);
        GoogleClientRequestInitializer clientRequestInitializer = new CommonGoogleClientRequestInitializer();
        translate = new Translate.Builder(httpTransport, jsonFactory, null)
                .setHttpRequestInitializer(requestInitializer)
                .setGoogleClientRequestInitializer(clientRequestInitializer)
                .build();
    }

    @Override
    protected String doInBackground(String... strings) {
        String textToTranslate = strings[0];
        String translation = "";

        try {
            Translate.Translations.List request = translate.translations().list(Arrays.asList(textToTranslate), TARGET_LANGUAGE);
            TranslationsListResponse response = request.execute();
            List<TranslationsResource> translations = response.getTranslations();
            if (translations != null && translations.size() > 0) {
                translation = translations.get(0).getTranslatedText();
            }
        } catch (GoogleJsonResponseException e) {
            Log.e(TAG, "Error executing translation request: " + e.getMessage());
        } catch (IOException e) {
            Log.e(TAG, "IOException during translation request: " + e.getMessage());
        }

        return translation;
    }

    @Override
    protected void onPostExecute(String translation) {
        // 在此处处理返回的撇号翻译结果
        Log.d(TAG, "Translation: " + translation);
    }
}