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Watch Later 2:12

單元五_可持續_環境1

By: t1807, Views: 908

環境1

Watch Later 6:11

單元五_可持續_環境2

By: t1807, Views: 986

環境2

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單元五_可持續_環境3

By: t1807, Views: 954

環境3

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單元五_可持續_環境4

By: t1807, Views: 981

環境4

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單元五_可持續-經濟1

By: t1807, Views: 975

經濟1

Watch Later 6:38

單元五_可持續-經濟2

By: t1807, Views: 990

經濟2

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單元五_可持續-經濟3

By: t1807, Views: 984

經濟3

Watch Later 6:45

Simple Present Tense VS Present Continuous Tense

By: t1710, Views: 1788

Simple Present Tense VS Present Continuous Tense

Watch Later 7:06

Simple Past Tense VS Present Prefect Tense

By: t1710, Views: 1635

Simple Past Tense VS Present Prefect Tense

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