International shipment often uses a combination of ______ ，______ ，______ and ______ transportation.
举一反三
- Waterway transportation includes ( ) transportation and river transportation.
- Shipment only refers to transportation by ships.
- The school uses a combination of modern and _______ methods for teaching reading.
- The International Phonetic Alphabet uses narrow transcription.
- __________ is the most widely used mode of transportation in international trade.