1. 大門(mén)口；門(mén)道；入口 A gateway is an entrance where there is a gate.
e.g. He walked across the park and through a gateway. 他穿過(guò)公園，走過(guò)一道大門(mén)。
2. （通往更廣闊地方的）通道，門(mén)戶(hù) A gateway to somewhere is a place which you go through because it leads you to a much larger place.
e.g. Lyons is the gateway to the Alps for motorists driving out from Britain. 里昂是從英國驅車(chē)前往阿爾卑斯山的門(mén)戶(hù)。
3. （取得進(jìn)展或更大成功的）途徑，手段 If something is a gateway to a job, career, or other activity, it gives you the opportunity to make progress or get further success in that activity.
e.g. The prestigious title offered a gateway to success in the highly competitive world of modelling. 在競爭異常激烈的模特界，這一享有盛譽(yù)的頭銜打開(kāi)了通往成功的大門(mén)。
4. 網(wǎng)關(guān)；網(wǎng)間連接設備 In computing, a gateway connects different computer networks so that information can be passed between them.