随时

On the other hand, we should always stay alert.

另一方面，我们应随时提高警觉。

With this in mind, be alert and always keep on praying for all the saints.

为此，应提高警觉，随时都在祈祷的圣人。

When you are prepared to take on with such rides, you should always stay alert while performing the stunts.

当你准备与这些游戏机，你必须随时留意，而采取的特技表演。

However these are uncertain times and we need to stay fit and alert as well as always flexible to change.

不过由于我们正身处一个非常不确定的时期，需要时刻保持警惕和高效，随时灵活地应对变化。

The relationship between stress and strain of concrete in prestressed concrete bridge s is written as algebraic form within load duration and the equilibrium equations of internal force and compatibility conditions are introduced.

首先将预应力混凝土桥梁中考虑收缩、徐变影响的任意时刻混凝土应力、应变关系在持荷时段内写成代数形式，引入内力平衡方程及变形协调条件后，提出了计入截面上钢筋位置、配筋率、预应力钢筋松弛、混凝土弹性模量随时间变化等影响的徐变效应分析的全量形式自动递进法，并建立了计算式，适用于任何形式的收缩、徐变特性表达式；基于建立的全量形式公式，可方便地求解任意时刻混凝土、钢筋的应力与应变和梁体竖向变形。

In the United States coffee is the usual drink at all hours of the day.

在美国，咖啡是最常见的饮料，24小时随时都可以享用。

But in football, you can get better all the time.

但这是足球，你随时都可以不断的进步。

Plus, you can always received free technical support from All-Pro Software.

另外，您可以随时收到免费的技术支持，从全Pro软件。

If aloe plants are not easily obtained in your area, you can always get one on the internet.

如果芦荟植物是不会轻易得到您的地区，您可以随时得到一在互联网上。

The stability of aloin decreased with the increase of temperature and heating time. However, the absorbency of aloin did not change with time under room temperature (20℃). The aloin was sensitive to light, and the aloe juice showed a yellowish green sediment in 2 hours after exposed to sunlight. The stability of aloin declined when the pH value arose. The aloe juice was more stable under lower concentration of sodium chloride and sucrose.

结果表明：加热的温度越高，时间越长，芦荟苷的热稳定性越差，而在室温下(20℃)芦荟苷的吸光度基本不随时间改变；芦荟苷具有光敏性，在太阳光照射下，2小时后便出现黄绿色沉淀物；芦荟溶液随着pH的升高，其稳定性下降；低浓度的氯化钠和蔗糖对芦荟汁液稳定性的维持比高浓度的效果明显。

I urge any American living outside the country to get an early start checking his/her registration and receiving an absentee ballot, because it can take a while.

我奉劝身在国外的所有美国人早点着手核对登记表，并接收缺席选举人票，因为这得花点时间。

He is too young to join the army.

他太年轻了，还不能参军。