1·He had to cancel some engagements because of tiredness.
他由于疲劳不得不取消一些约会。
—— 《柯林斯英汉双解大词典》
2·People under too much pressure would sometimes suffer from muscle aches, headache, tiredness, loss of appetite and so on.
压力太大的人有时候会有肌肉疼痛、头痛、疲劳、食欲不振等症状。
3·Another flaw of the tiredness theory is that yawning does not raise alertness or physiological activity, as the theory would predict.
疲劳理论的另一个缺陷是，打哈欠并不能像该理论所预测的那样，提高警觉性或生理活跃度。
4·An increasing ratio of mistakes, perhaps induced by tiredness, crept into her game.
可能是因为疲劳，她在比赛中的错误率不知不觉地升高了。
—— 《柯林斯英汉双解大词典》
5·Tiredness while driving can kill.
疲劳驾驶会出人命的。
—— 《牛津词典》
1·Symptoms include tiredness, paleness, and lethargy.
症状包括疲倦、面色苍白和没精打采。
—— 《柯林斯英汉双解大词典》
2·Side-effects include nausea, tiredness, and dizziness.
副作用包括呕吐、疲倦和头晕。
—— 《柯林斯英汉双解大词典》
3·Tiredness and fever are much more likely to be a sign of the flu coming on.
疲倦和发烧很有可能是流感开始的征兆。
—— 《柯林斯英汉双解大词典》
4·Other symptoms (tiredness, dizziness) can be non-specific so the condition is often advanced by the time it is diagnosed.
其它症状（疲倦、头昏眼花）可能不明显，因此这种病往往在得到确诊时症状才明显。
5·Symptoms include fever, headache, tiredness, and body aches, nausea, vomiting, occasionally with a skin rash (on the trunk of the body) and swollen lymph glands.
其症状包括发烧、头疼、疲倦、全身酸痛、恶心和呕吐，偶尔伴有（身体躯干）皮疹和淋巴腺肿大。