SimpleTranslate.psm1

function SimpleTranslate ($word) {
    $timeStamp = [Long]([Double]::Parse((Get-Date -UFormat %s)) * 1000)
    $appid = "2015063000000001"
    $key = "12345678"

    $tohash = $appid + $word + $timeStamp + $key
    $md5 = new-object -TypeName System.Security.Cryptography.MD5CryptoServiceProvider
    $utf8 = new-object -TypeName System.Text.UTF8Encoding
    $sign = [System.BitConverter]::ToString($md5.ComputeHash($utf8.GetBytes($tohash))).Replace("-", "").ToLower()


    $params = @{
        q     = $word;
        appid = $appid;
        salt  = $timeStamp;
        sign  = $sign;
    }
    $lngCheck = [System.Text.RegularExpressions.Regex]::Match($word, "[\u4e00-\u9fa5]").Success
    if ($lngCheck) {
        $params.Add("from", "zh")
        $params.Add("to", "en")
    }
    else {
        $params.Add("from", "en")
        $params.Add("to", "zh")
    }

    $querystring = ""
    $params.GetEnumerator() | ForEach-Object {$querystring += $_.Name + "=" + $_.Value + "&"}
    $url = "http://api.fanyi.baidu.com/api/trans/vip/translate?" + $querystring
    $rsp = wget $url | ConvertFrom-Json

    echo $rsp.trans_result[0].dst
}