He seldom if ever travels abroad.

他很少出国旅行。

youdao

Parents should be aware of the fact that children, who are raised on a diet of soap operas and online games, seldom, if ever participate in a variety of activities.

父母应该意识到这样一个事实：孩子们如果从小就看肥皂剧，玩网络游戏，很少会参加各种各样的活动。

youdao

She seldom, if ever, goes to the theatre.

她难得上剧院看场戏—即便不能说从来不去。

《牛津词典》

Price is seldom if ever the real reason why the prospect is not buying.

FORBES: 5 Ways to Keep Prospects from Picking Your Pocket

Under the plans, MPs would "seldom, if ever" face the chop, the Political and Constitutional Reform Committee predicted in its latest report.

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Democracies seldom, if ever, take up arms against each other.

ECONOMIST: A suitable target for foreign policy?