They only have enough money for the most important things.

VOA: special.2009.10.18

The ones that are most important in physiology are ones that only allow ions to go through: sodium, potassium, chloride, calcium, bicarbonate.

在生理学上这种,只能允许某种离子通过的通道十分重要,这些离子包括钠离子,钾离子,氯离子,钙离子和碳酸氢根离子

耶鲁公开课 - 生物医学工程探索课程节选

EDITOR: "We're about to accuse Haldeman -- who only happens to be the second most important man in this country -- of conducting a criminal conspiracy from inside the White House.

VOA: special.2009.04.20

"The most important step is one they're only beginning to take now and that's to prohibit the import and sale of timber which was illegally sourced in the country of origin."

VOA: standard.2010.07.28