0 to do or begin to do something, especially something that will take a long time or be difficult -- （開始）做，承擔，從事（尤指耗時或困難之事）
Students are required to undertake simple experiments. 要求學生們做些簡單的實驗。
1 to promise that you will do something -- 承諾，允諾，答應
[ + that ] The government undertook that the buildings would not be redeveloped. 政���承諾不會改造這些大樓。
[ + to infinitive ] She undertook not to publish the names of the people involved. 她答應不公佈有關人員的名字。
The complete solution of these fundamental equations requires a numerical investigation of considerable complexity which has not been undertaken.
A similar conversion was undertaken for weights of cultivar selection criteria.
Initial studies on in-utero tracheal occlusion were undertaken by tracheal ligation,111 using clipping of the fetal trachea.
Several graptolite studies have been undertaken in the area.
In closing, however, let me provide a reminder of the character of the exercise we have undertaken.
All observations and experiments, except those dealing with phenological synchronization with the host, were undertaken in the laboratory.
If these are unknown, then further research should be undertaken to elucidate these quantities.
The task was formidable but has been undertaken successfully.
