查询词典 be surprised at sth. perfectly normal

Keep one's mind on sthbcontinue to pay attention to sth; not be distracted from sth

继续专心於某事物；不因某事物分散注意力

Keep sb / sth from doing sth.

"阻止、防止某人/某物做某事"如

Stop/prevent sb doing sth =keep sb from doing sth.

阻止某人做某事，只是后面一个句子中的from 不可以省略。

Keep sb/sth on phr v (=to continue to employ someone/rent sth, especially for longer than you had planned and)v.

继续雇佣，继续租用某物

Bear/keep sb/sth in 'mind remember sb/sth 记住某人: We have no vacancies now, but we'll certainly bear your application in mind.

我们目前没有空缺，但是我们一定记住你申请的事。

Keep off sth phr v (=to avoid eating, drinking sth )v.

避免吃或喝某物

Keep sth off or away;delay sth,esp temporarily

挡开或避开某事物；延迟某事物尤指暂时

Stick to :not abandon or change sth.; keep to sth.

不放弃或不改变某事物

Stick to : not abandon or change sth.;keep to sth.

不放弃，坚持或维持某事物

To keep sb/sth alive, or safe from harm or danger 使继续存活;保护;保全 VN ~ sb/sth The society was set up to preserve endangered species from extinction.

成立这个协会是为了保护濒危物种不致灭绝。 reserve有主动去防止，去保存，去储备的意思 conserve有抵御外界损害力量的意思，环形抵御，全方位因为构词成分是con－ preserve也是被动的保有某种状态，侧重于状态的无变化

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。