長期間にわたって: 1. for a prolonged period 2. over a long duration 3. over an extended time period 4. over the long haul 5. over the long term 査察を長期間にわたって継続する: continue the inspections over the long term かなりの長期間にわたって: for a considerable period of time その薬の投与が長期間にわたっている: The drug has been used over a prolonged period. 具体的交渉を長期間にわたって進める: pursue substantive negotiations over a longer term 査察を長期間にわたって続ける: continue the inspections over the long term 長期間にわたってストレスを感じて: under long time of stress ある期間にわたって: over a period of time 一定期間にわたって: 1. for a given period of time 2. over a fixed period of time 3. over a period 不況の全期間にわたって: over the full course of the slump 長い期間にわたって: over long periods of time ＿年の期間にわたって: for a term of __ years 長期間にわたって主に手紙で求婚を続ける: conduct the long courtship mostly by letters 収縮期間にわたって持続する: last throughout systole 長期間にわたる: cover a long period
