She tired easily and had a weak heart.

她容易疲劳，心脏也比较弱。

《柯林斯英汉双解大词典》

Back at our hostel, I am feeling tired and weak and put it down to the heat and the steep climb with ridiculously heavy and over-packed backpack.

回到旅馆里，我感觉疲惫衰弱，大概是天气炎热，爬了陡坡的关系，再加上我装得太满，重得不可思议的双肩包。

youdao

Right from the first verse, the lyrics of this song can totally be related to running: "' Cause sometimes you feel tired, feel weak, and when you feel weak, you feel like you wanna just give up."

从第一个，歌词完全地跟跑步有关：“因为有时你感到疲倦，感到虚弱，当你感到虚弱时，你感觉你想要放弃。”

youdao

On and on they marched. Many of them -- weak from hunger and tired beyond belief could go no farther.

VOA: special.2009.12.17

He told a friend that he felt very tired and weak.

VOA: special.2009.03.19

But that day she was tired and a little bit weak.

VOA: special.2009.09.05

"I called it the Statue of Liberty: give us your tired, your weak, your poor, " Cashman said.

WSJ: New York Yankees: Down but Not Out��Brian Cashman

By the mid-1950s, in fact, the townships were home to a majority of the country's black population, but they were such rough and rowdy places that many of the rural dispossessed chose not to join the urban rush too weak or too poor, too unskilled and too uneducated, too tired and too frightened to be comfortable in them.

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