Between "LOL" (probably around to stay for a while) and "beachburner" (dead before the dictionary hit the shelves) there are tough calls to make about new words.

“笑死我了(LOL)”(很可能会坚持存在一段时间)和“海滩燃烧者(beachburner)”(辞典摆上书架之前这词就已经不再使用了)的对比，说明收录新词汇其实是项艰难的工作。

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And it is telling anyone who will listen that consumers will suffer if tough do-not-track rules hit AD revenues, forcing web firms to charge for more content.

它也在告诉任何愿意倾听的人，倘若严格的“不跟踪”规定损及广告收入，就会迫使网络公司对更多内容收费，遭殃的可是用户。

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After you've spent a long day at work, it can be tough to get motivated to go for a run or hit the gym.

在工作了一整天之后，你可以很难有精力去跑步或者去体育馆。

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Clorox was generous with its bonus even though it has hit a tough stretch lately.

WSJ: Executive Bonuses Bounce Back

Tommy Brenton drove through the lane to hit a tough shot to cut Iowa's lead to 46-43.

WSJ: Iowa fights off Stony Brook 75-63 for NIT win

Marlon Byrd hit a tough dribbler down the third base line in the sixth for an RBI single.

WSJ: Valdespin, Mets stung in 11-2 loss to Pirates