We sometimes forget that self-confidence is like gasoline in the fuel tank. It requires topping up on a regular basis.

有时我们忘记了，自信就像油箱里的汽油，需要定期加满。

youdao

It flaps its four wings for take off and flight and is able to stay aloft for about 2.5 minutes before its 90 mAh battery needs topping up.

它扇动它的四个翅膀起飞和飞行，并能之前，其90毫安时电池需要补足，以在空中停留约2.5分钟。

youdao

This has been a wonderful tournament, now,topping it up, is Football for Hope."

VOA: standard.2010.07.05

It allocates the rest of the seats to candidates drawn from party lists, topping up the totals to make them match the parties' shares of second votes.

ECONOMIST: Germany's federal election

Given that Oxford finished third in the Blue Square Premier, eight points clear of York, after topping the league for so much of the season, it was perhaps fitting that they went up.

BBC: Oxford celebrate