bag packing...[继续阅读]

    vt.endorse; n.endorsement...[继续阅读]

    indigenous...[继续阅读]

    local operator...[继续阅读]

    ahead of schedule...[继续阅读]

    behind schedule...[继续阅读]

    The same to you!...[继续阅读]

    compulsory; requirec(course)...[继续阅读]

    on occasion...[继续阅读]

    requirement...[继续阅读]