After watching the video at least twice, how about asking questions to get the following answers?
1. every day 2. 20 or 30 years ago 3. 15 % 4. through the Port of Los Angeles 5. since the earthquake 6. the first week after the earthquake 7. no, they won't 8. by the fall 9. perhaps
And now, play the video again, this time with the objective of identifying the following words:
arrive at next to busiest trading partner combined really makes up largest slow down stop level true incoming shipments agriculture in particular normally packed drop exportable problems nuclear plant boats refrigerate because of imported officials equipment later exactly longer