Sometimes up to a year later the muscles start to feel weak.

有时在一年后，肌肉会开始感觉无力。

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Listen, when you start to feel weak, just tell yourself, 'I'm as strong as a girder'.

听着，当你开始觉得虚弱的时候，就对自己说：‘我像钢梁一样强壮’。

youdao

Those who do not bother to get plentiful amounts of iron may begin to feel weak and tired.

那些不愿意去获得丰富的大量的铁可能开始觉得虚弱和疲惫。

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Fiscal 2009 continued to feel the effects of weak shopping trends spurred by the economic downturn.

FORBES: Yes, Virginia, Macy's Is A Good Buy

We believe that Wal-Mart is unlikely to feel the pressure of weak earnings of the electronic retail giant Best Buy.

FORBES: Best Buy Got Hammered So Is Wal-Mart Next?

The bed seemed the perfect place to curl up with a book in the evening (the suites are blessedly sans televisions), but the dim lighting, which so added to the cabinlike feel earlier, and the weak bedside lamp made reading a spine-curving challenge (my only complaint about the suite).

FORBES: Magazine Article