视频对话：
Somebody's got to be missing a boat.
应该有人船失踪才对。
I checked with all the big fishing fleets.
我查过了所有大的船队。
None of them have an overdue boat.
没有迟归的船。
本期学习词汇：
fleet
n.舰队；船队；车队；港湾，小河
adj.快速的，敏捷的；转瞬即逝的
vi.疾驰；飞逝
vt.使（时间）飞逝；消磨
例句：
1. The damage inflicted upon the British fleet was devastating.
英国舰队遭到了毁灭性的重创。
2. The fleet began to fill away on a northerly course.
船队开始借风向北航行。
3. The storm beached half the fleet.
风暴使舰队的半数舰只搁浅。
4. Opportunity is everywhere, but it is fleet of foot.
机遇四处都有，但它转瞬即逝。
5. On board the ship I fleet time by read detective story.
在船上我读侦探小说，借以消磨时间。