She gave her knee a quick rub.
她很快地揉了揉膝盖。
She sometimes asks if I want a back rub.
她有时问我是否想要一次背部按摩。
You may need to give the floor a rub-down with glasspaper.
你可能得用玻璃砂纸打磨一下地板。
If you write on the blackboard, rub it off at the end of the lesson.
如果你在黑板上写字，下课时要擦掉。
Martha began to rub her grate again.
玛莎又开始擦拭壁炉。
They rub themselves against stones and roots.
它们在石头和根茎上摩擦自己。
John would rub his eyes and mutter, "It is true, we did fly."
约翰揉了揉眼睛，喃喃自语道：“这是真的，我们真的飞了。”
First, rub your hands with oil and then break open the jack-fruit.
首先，用油搓你的手，然后打开菠萝蜜。
Capuchin monkeys often rub their bodies with a certain type of millipede.
卷尾猴经常用某类千足虫擦拭身体。
Just rub the cut side of half a lemon all over them and buff with a soft cloth.
只需用半个柠檬的切面擦拭它们全部，然后用软布擦亮即可。
When the rats detect the smell, they stop and rub their legs to indicate a sample is infected.
老鼠嗅到这种气味时会停下来，摩擦双腿，表明样本已被感染。
Third, older, more dominant bucks produce more buck rubs and probably deposit more glandular secretions on a given rub.
第三，年龄更大、更具统治地位的雄鹿制造的擦痕更多，而且其分泌在特定擦痕上的气味分泌物很可能也更多。
Buck rubs also have a scent produced by glands in the foreheads of deer that is transferred to the tree when the rub is made.
雄鹿摩擦都有一种由雄鹿前额上的腺体产生的气味，这种气味在制造擦痕时就涂抹到了树上。
Second, because only male deer rub, the buck rub and its associated chemicals indicate the sex of the deer producing the rub.
第二，因为只有雄鹿会做出摩擦动作，摩擦动作和与之相关的化学物质表明了制造擦痕的鹿的性别。
Some scientists hypothesize that the monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.
一些科学家猜测，这些猴子用千足虫擦自己的身体，是因为这样做有助于保护它们免受蚊子叮咬。
First, the chemicals deposited on the rub provide information on the individual identity of an animal; no two mammals produce the same scent.
首先，擦痕上的化学物质提供了动物的个体特征信息；没有两种哺乳动物会产生相同的气味。
"Gently rub the inside of an avocado peel on your face," says Morgan, "and leave the residue on for about 20 minutes for a moisturizing mask."
摩根说：“将鳄梨皮的内侧在脸上轻轻涂擦，让残留物保留大约20分钟，可以起到保湿面膜的作用。”
It was found that when a white-tailed buck makes a rub, it moves both antlers and forehead glands along the small tree in a vertical direction.
人们发现当白尾鹿摩擦时，它的鹿角和前额腺会沿着小树垂直移动。
The information conveyed by the olfactory signals on a buck rub make it the social equivalent of some auditory signals in other deer species, such as trumpeting by bull elk.
雄鹿的摩擦印记发出的嗅觉信号所传递的信息，使其与某些其他鹿类的听觉信号，比如公麋鹿的号角声，产生了相同的社会效果。
Biologists also noted deer sniff and lick an unfamiliar rub, which suggests that this visual mark on a small tree plays an important communication purpose in the social life of deer.
生物学家也注意到鹿会嗅和舔陌生的擦痕，这表明小树上的这种视觉标记在鹿群的社会生活中起着重要的交流作用。
His enemies will attempt to rub his nose in past policy statements.
他的对手们将试图揪住他过去政策声明中的纰漏不放。
The hotel is in the middle of nowhere and there lies the rub. We don't have a car.
难就难在旅馆很偏远，我们又没有汽车。
别揉眼睛。
The gold colouring had begun to rub off.
金黄色已经开始剥落了。
The rub is, if the vast majority of people increasingly agree that climate change is a global emergency, there's far less agreement on how to fix it.
问题是，如果绝大多数人越来越认同气候变化是一个全球性的紧急事件，那么在如何解决这个问题上就没有那么多的共识了。
I know I was stupid; you don't have to rub it in.
我知道我当时很愚蠢；你不必老提这件事。
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