今日份單詞：
1. hemisphere 半球?
hemi 半 + sphere 「圓形物」
2. exceptional
adj.?You use?exceptional?to describe someone or something that has a particular quality, usually a good quality, to an unusually high degree.優(yōu)異的;非凡的adj.?Exceptional?situations and incidents are unusual and only likely to happen very infrequently.例外的;特殊的
3. recovery
n.?If a sick person makes a?recovery, he or she becomes well again.（身體的）恢復(fù)，康復(fù)
n.?When there is a?recovery?in a country's economy, it improves.（經(jīng)濟(jì)的）復(fù)蘇，好轉(zhuǎn)
n.?You talk about the?recovery of?something when you get it back after it has been lost or stolen.收回；取回；失而復(fù)得
n.?You talk about the?recovery of?someone's physical or mental state when they return to this state.（身體或精神狀態(tài)的）恢復(fù)
phrase.?If someone is?in recovery, they are being given a course of treatment to help them recover from something such as a drug habit or mental illness.在恢復(fù)當(dāng)中；正在好轉(zhuǎn)
4. characteristic
n.?The?characteristics?of a person or thing are the qualities or features that belong to them and make them recognizable.特色;特點(diǎn);特征
adj.?A quality or feature that is?characteristic of?someone or something is one which is often seen in them and seems typical of them.(品質(zhì)、特點(diǎn))明顯的，顯著的，典型的
5.?conventional
adj.?Someone who is?conventional?has behaviour or opinions that are ordinary and normal.（行為、觀念等）傳統(tǒng)的，符合習(xí)俗的
adj.?A?conventional?method or product is one that is usually used or that has been in use for a long time.（方法或產(chǎn)品）通常的，傳統(tǒng)的
adj.?Conventional?weapons and wars do not involve nuclear explosives.(武器、戰(zhàn)爭等)常規(guī)的，非核的
6.?disastrous
adj.?A?disastrous?event has extremely bad consequences and effects.極糟糕的;災(zāi)難性的adj.?If you describe something as?disastrous, you mean that it was very unsuccessful.完全失敗的;極糟的
7.?hypothesis
n.?A?hypothesis?is an idea which is suggested as a possible explanation for a particular situation or condition, but which has not yet been proved to be correct.假說;假設(shè)
8. devote
v.?If you?devote?yourself, your time, or your energy?to?something, you spend all or most of your time or energy on it.獻(xiàn)（身）；奉獻(xiàn)，投入(時(shí)間、精力等)
v.?If you?devote?a particular proportion of a piece of writing or a speech?to?a particular subject, you deal with the subject in that amount of space or time.將(文章或講話的某一部分)專用（于）
9. distinct
adj.?If something is?distinct from?something else of the same type, it is different or separate from it.有區(qū)別的;不同的;個(gè)別的
adj.?If something is?distinct, you can hear, see, or taste it clearly.清楚的;清晰的;明顯的adj.?If an idea, thought, or intention is?distinct, it is clear and definite.確定無疑的;確切的;清楚的
adj.?You can use?distinct?to emphasize that something is great enough in amount or degree to be noticeable or important.顯著的;明顯的
prep.?If you say that you are talking about one thing?as distinct from?another, you are indicating exactly which thing you mean.截然不同于;完全不同于;有區(qū)別于
