阵【zhèn】
1. short period; spell 2. battle array; front 3. a period of time;
[量] 1、表示事情或动作经过的段落 [名] 2、古代战术用语,指作战队伍的行列或结合方式;也指阵地 3、一段时间(后常跟“儿”或“子”)

晚上,走廊里突然响起了一阵脚步声。
In the stillness of the night, there was suddenly the sound of footsteps in the corridor.

军队严阵以待防止敌人的偷袭。
The troops stood in combat readiness against the enemy's sneak attack.

这阵子,你跑到哪里去了,人影都不见。
There was no sight of you. Where have you been?
阵容【zhèn róng】
troop arrangement; lineup; line-up
[名] 作战队伍的外貌或所显示的力量

足球是圆的,阵容再强大的球队都有可能输球。
A football is round. Even the most powerful team may fail in the games.