系用英语怎么说

领导

It depends on the context. Here are some possibilities:

- 待会儿我会系上你的鞋带。 (I will tie your shoelaces for you in a moment.)

- 我正在学习系数学方程。 (I am currently studying how to solve mathematical equations.)

- 请你帮我系一下这个扣子。 (Can you help me fasten this button?)

- 这个问题系于领导的决定。 (This issue depends on the decision of the leader.)

- 他系着绳子从悬崖上爬上来。 (He climbed up the cliff by tying himself to a rope.)