I'm sorry you've had a wasted journey.

抱歉劳你白跑趟。

A serial killer is on the loose!

有个连环杀手正逍遥法外！

Several small businesses consolidated to form a large powerful company.

几家小企业合并成了家实力雄厚大型公司。

Viewed from the top of Mount Tai, the sunrise was indeed a spectacle.

从泰山顶上看去，日出真是个奇观。

A tigon is a cross between a tiger and a lion.

虎狮是老虎狮子交配产品。

A mule is a cross between a mare and a donkey.

骡子是雌马杂交种。

A tiglon is a cross between a lion and a tiger.

虎狮是狮子老虎杂交种。

A small room; a cubbyhole; a small secluded room; a small compartment.

有小房间，小隔间（橱），隐蔽小房间，意思。具体翻译要看上下文而定。

An electron has a negative charge,a proton has a positive charge.

电子带负电荷,质子带正电荷。

A picture of a cat on a log is a rebus for catalog.

谜画中有猫(cat)站在块木头(a log)上, 谜底是catalog(目录)。

I'm a renegade, a turncoat, a Scalawag.

我是个叛徒，变节者，流氓。

A dime is a tenth of a dollar.

角银币是十分之美元。

The four-building complex will include a library, a museum, an auditorium and a planetarium.

由四栋房屋所构成这座综合建筑将包括个图书馆、个博物馆、个礼堂及个天文馆。

A chair consists of a seat with a back.

椅子是由椅座椅背构成。

I was a nuisance, an incumbrance, and a pest.

我是个讨厌东西，个累赘，个祸害。

A tenant occupies a flat, a building, a farm, etc but does not own it.

* tenent （房客或佃户）占用公寓、建筑物、农场，但并非所有者。

When a catalytically active enzyme forms a complex with a cofactor a holoenzyme is produced.

酶蛋白辅助因子两者结合成完整分子时，形成具有活力全酶。

If a state punishes a murderer by death it’s an eye for an eye.

如果政府以死刑惩处凶手,这是以牙还牙。

The statue has a gentleness,an ambience,a wistful elegance.

那尊雕像具有种柔、种独特格调、种忧郁沉思雅致。

A coin has two sides,a head and a tail.

硬币有正反两面。