One of the most damaging technical errors is the habit of placing the thumb under the palm.

一个有破坏性弹奏技术的错误是拇指总习惯于低于手掌。

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They are so small that they can fit under your thumb.

它们非常小，完全可以放在你的拇指下。

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At least in Gaza, which Israel has under its thumb, the captive soldier is unlikely to be moved.

至少在以色列控制下的加沙，被俘士兵不大可能被转移。

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That way you can keep key customers under thumb while also getting valuable feedback on your business.

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If you want matters even more under thumb, create a tiered capital structure, in which there might be regular shares and "super-voting" shares.

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Under the scheme, Washington brought the tobacco industry under the thumb of federal regulation.

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