Practice with how much pressure needs to be put on the razor or if the thumb should hold hair against the razor's edge are each part of experimenting with this type of thinning out of hair.

这种方法需要反复练习，来摸准把头发按向刀刃的大拇指需要用多大力。

youdao

Old rules of thumb which said that countries should keep enough reserves to cover only short-term foreign debt now look hopelessly out of date.

过去粗浅的经验——国家应该维持足够的外汇储备来应付仅仅是短期的外债——现在看来绝望又过时。

youdao

Say when you're at the front of C prime, your thumb points to the right, your index points up because that's where the surface is, and then your middle finger will point out.

你在曲线C的前端，你的拇指指向右边，你给指出来了，因为那就是这个表面所在，然后你的中指就会指出。

youdao

Hoover Shoates got his head out of the way but not his thumb.

胡福-硕茨只来得及把他的头缩回去，却没来得及把拇指抽回。

耶鲁公开课 - 1945年后的美国小说课程节选

If the pods are more mature and larger say, the size of your thumb then shuck the beans out of their velvety casings to cook them in a pilaf or risotto, or braise them Roman-style with chopped pancetta.

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Garland received a cut of the thumb, was afterwards made an out-patient of the infirmary, but the wound mortified, produced lock-jaw, and death ensued.

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Ferzat drew al-Assad standing on the side of the road with his thumb in the air, ready to hitchhike out of Syria.

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